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Search found 127 matches

by Foliant
Monday, 18 April 2016, 10:34 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: rm italy kl 7505v
Replies: 5
Views: 733

Re: rm italy kl 7505v

d-minus wrote:If they are 10m they could be converted right.
Take a look: viewtopic.php?f=19&t=47503" onclick="window.open(this.href);return false;
by Foliant
Tuesday, 29 March 2016, 14:48 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: kl503
Replies: 23
Views: 1270

Re: kl503

redlght wrote:RM never got back to me when i asked the, how much for a set of fets for it.
Never had a problem, they responded in under three days.

They sell RM3 for 4€ and RM4 for 4,5€, plus 7€ shipping from italy to germany.
This was in 2014.

by Foliant
Saturday, 26 March 2016, 5:55 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: kl503
Replies: 23
Views: 1270

Re: kl503

redlght wrote:Anyone ever redo an RM amp with 13n10 or 520's?
If you can get some original BUZ71A youre done, the official "replacement" (STP16NF06 - dont try STP16NF06L) wont work nearly as good.
In all cases you have to check the circuit around the FETs
by Foliant
Friday, 25 March 2016, 11:29 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: kl503
Replies: 23
Views: 1270

Re: kl503

I need to replace the fets in this amp and not sure if they are 520 or 520n or does it matter Neither ... nor. But you may try the 520n because they will do the job a little better. Tune the circuit for the best signal quality. (quality ≠ power) and is mosfet1 with a the yellow dot different then t...
by Foliant
Sunday, 20 March 2016, 15:15 PM
Forum: RADIO MODIFICATIONS
Topic: Lil Brute Force
Replies: 30
Views: 709

Re: Lil Brute Force

As of Capacitor, Feedback Resistor and Transistor placement the side with the marking "Lil Brute Force" is the input.
by Foliant
Monday, 14 March 2016, 14:16 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: kl503
Replies: 23
Views: 1270

Re: kl503

Image

Check:
  • all Z-Diodes
  • MSFET 1
  • C27 - C30
  • C4 - C7
by Foliant
Saturday, 12 March 2016, 12:52 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: kl503
Replies: 23
Views: 1270

Re: kl503

As you wrote
Bombero wrote:IRF520's
i know you never tried them in a RM-Amp.

With luck you can get about 75-80% out of a unmodified RM-Mosfet-Amp...

I can tell you theres even not painted 'IRF' on the right parts.
by Foliant
Sunday, 31 January 2016, 12:44 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Cobra 350 XL
Replies: 12
Views: 891

Re: Cobra 350 XL

I found a Cobra 350XT in my Pic-Bin.

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by Foliant
Thursday, 14 January 2016, 9:30 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: KL 203-p problem
Replies: 25
Views: 1329

Re: KL 203-p problem

Have you tried a choke balun to prevent the radiating of the coaxcable?
by Foliant
Thursday, 14 January 2016, 9:27 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: computer power supplies
Replies: 8
Views: 741

Re: computer power supplies

The Voltage Sens is on all rails, but most Computer Supplies only regulate the 5V circuit. So if you only need the 12V you have to cheat at least the 5V-Sens or put a big Resistor in the 5V Line so the PS sees a big load. Either way, dont expect full Power out from convertet ATX Power Supplies. You ...
by Foliant
Saturday, 09 January 2016, 17:05 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Auto SSB
Replies: 3
Views: 324

Re: Auto SSB

all the amp manufacturer did was eliminate the switch and the delay is there all the time. Thanks. And i was in hope there would be some 'magic circuit' i simply dont know... Hmm... To ensure fast switching i will not just add a Capacitor. My noise reducing circuit* now includes a PTT-contact, but ...
by Foliant
Saturday, 09 January 2016, 10:56 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Auto SSB
Replies: 3
Views: 324

Auto SSB

Sometimes I read "Auto SSB" or "Auto SSB switch" related to amplifiers.
I would consider it means the delay?
I never came in contact with this term in europe, so i would like to ask what does it do and if its worth how to build this?

Regards
Patrick
by Foliant
Friday, 27 November 2015, 13:22 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

Hi!!!111111oneoneeleven! :bigsmurf: I recently put all parts together... http://s9.postimg.org/mo2we85uj/0_Front.jpg But there is a problem: My circuit for the meter is working very good with FM where its seeing a constant carrrier, but i cant get it to swing much in AM or SSB. Maybe there is a prov...
by Foliant
Saturday, 21 November 2015, 12:01 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Quality offense in Homebrewing?
Replies: 9
Views: 450

Re: Quality offense in Homebrewing?

Once i get a radio with a piece of PE-HD-Foil under the Power Transisor.
Owner said he changed the Transistor and the unit works about a month, now he dont feels like repairing it a second time and has bought a new radio...
by Foliant
Saturday, 21 November 2015, 11:11 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Quality offense in Homebrewing?
Replies: 9
Views: 450

Re: Quality offense in Homebrewing?

Foliant wrote:This evening ill not tell anyone what im running and check if there is some unwanted noise...
I could even catch some DX-Stations.
Overall rapport: "Works great.", "Loud and clear."
Foliant wrote:Lets call it a "feasibility study" 8)
Study concluded.
by Foliant
Saturday, 21 November 2015, 8:01 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Quality offense in Homebrewing?
Replies: 9
Views: 450

Re: Quality offense in Homebrewing?

:shock: Bubble Wrap... :icon_e_surprised:
There is only one thing left to say: WTF!?
by Foliant
Friday, 20 November 2015, 13:11 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Quality offense in Homebrewing?
Replies: 9
Views: 450

Re: Quality offense in Homebrewing?

Including the repair of that Amplifier (MOSFET and a Diode) I would rate it a 3-Hour-Job. The PS-Box was empty before. The Amplifier was some sort of a by-catch in an auction. Im now a Janitor at a basic- and secondary school, there i have access to machinery and workbenches... This was a funny litt...
by Foliant
Tuesday, 17 November 2015, 13:56 PM
Forum: JOKES & HUMOR
Topic: Road Rage Justice
Replies: 1
Views: 312

Re: Road Rage Justice

Yep, its funny.

But that dashcam seems to have a "Fortune III" Enchantment...
by Foliant
Tuesday, 17 November 2015, 13:45 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Quality offense in Homebrewing?
Replies: 9
Views: 450

Quality offense in Homebrewing?

As this is a thread in " AMPLIFIERS / POWER SUPPLIES " i thought it would be exactly right... There are people selling really weird things on ebay. Stuff that is ugly and dangerous... The last item i saw was a Zetagi B150 in the box of a copmputer power supply. (221941040292) The DC-Voltage comes fr...
by Foliant
Thursday, 05 November 2015, 10:42 AM
Forum: OTHER TECHNICAL QUESTIONS
Topic: Antenna matcher placement
Replies: 8
Views: 359

Re: Antenna matcher placement

The last thing before an Antenna is the matcher/tuner.

You will use an "Antenna matcher". You will not use a "Booster matcher".
The only right position for a matcher/tuner is the close to the Antenna as possible.
by Foliant
Sunday, 01 November 2015, 9:39 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

Yes, thats possible. I cant see any problem. I dont have a circuit of the AD-203 but i can see the input attenuator on pics. A better heatsink or forced cooling is a must have. Since theyre MOSFETs they are biased. If you cut the Bias out the Fets will do funny things... Dont overdrive a Mosfet in a...
by Foliant
Sunday, 01 November 2015, 7:27 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

I'll keep you informed. The Front isnt finished at the moment, but the 8 Bugs are working fine, so the Front will be necessarily equipped... :biggrin: https://www.youtube.com/watch?v=KhR3zXAMFCM" onclick="window.open(this.href);return false; http://s10.postimg.org/lp48y4m85/Front_ohne_Platte.jpg - ...
by Foliant
Tuesday, 20 October 2015, 13:59 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

Im into a new Job (Janitor at a basic- and secondary school) so the Project was lagging a bit. My decision was to use only cascaded 2-Port-Splitter/Combiners but this seems to be very inefficient. Each section of two 203's runs verry smooth and at the same Specs, but input (drive) have to be higher ...
by Foliant
Friday, 31 July 2015, 8:53 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Good small amp for small base station
Replies: 26
Views: 796

Re: Good small amp for small base station

theglide wrote:Questions: Is the 203P as good as the 203? Other than the preamp is it the same?
Its the same amp but combined with a preamp.
by Foliant
Tuesday, 30 June 2015, 12:22 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: KL 203-p problem
Replies: 25
Views: 1329

Re: KL 203-p problem

Someone asked if the cover was plastic or metal. It's still plastic :-( Thanks. Well its not very old so i wouldnt think a cap is causing this. If one of the Fets would cause this you would see, hear and sniff it. You may have unwanted RF in your Car. Try other cable lengths, better schielding and ...
by Foliant
Monday, 15 June 2015, 12:01 PM
Forum: MOBILE SETUPS
Topic: Albrecht AE-5890
Replies: 9
Views: 655

Re: Albrecht AE-5890

how many versions there are. 3. First: Smoking voltage regulator if you turn the radio down, PWR-Dial only usefull in a tiny turn Second: Updatet voltage regulator, some minor changes, better working PWR-Dial Third: Added sound compressor, some minor changes, now with nearly linear PWR-Dial for the...
by Foliant
Sunday, 14 June 2015, 9:09 AM
Forum: MOBILE SETUPS
Topic: Albrecht AE-5890
Replies: 9
Views: 655

Re: Albrecht AE-5890

Own one, nice radio, good frequencie coverage.
Go for a new Version with sound compressor and you will be happy.
by Foliant
Wednesday, 27 May 2015, 14:17 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine four KL-203 (get a Super-HI-Drive 16 MOSFET Amp)

I know you wanna experiment with coils which is cool. But you could also used some 1/2" transformers for splitter and some 1" for combiner. Do easy 4port and then to tweak circuit, add just a small amount of inductance like around .15-.18uH in series to raise impedance. Could be done for $20. Just ...
by Foliant
Tuesday, 26 May 2015, 7:26 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

Inter alia I choose the Mosfet-Amps because Ive noticed there is only little difference between two or more Amps. I will force cooling the Amps, Mosfets seems to be stable in a wide range, i can notice a little drop on the output before killing a Fet in RF-use. ---- http://s8.postimg.org/p6s9kbp4x/A...
by Foliant
Monday, 25 May 2015, 22:19 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

Did you try it with coax? Why did you decide to use coils & caps instead? Yes, i had bad effects by rolling the coax to fit in may case. A 20W-Thick-Film-Resistor wasnt enough where straight on the Bench a 1W Carbon was not geting warm. With coils i can get to the peak without heating up the Resist...
by Foliant
Monday, 25 May 2015, 14:46 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

Thats the Plan. :jokercolor: I now have all parts and the costs are under 200€ which are approximately $220. The Amps where used from ebay, one of them have to be repaired. (No problem, since the 'RM3' is no secret for me anymore) The time i have to spend is a big part, especialy for doing this for ...
by Foliant
Sunday, 24 May 2015, 2:08 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

In Theory it should even work by adding some further Wilkinson Splitter and Combiner. http://s24.postimg.org/jrtttcwpt/Cantharis_16.jpg Plan is to do it as cheap as possible, a pre-assembled 4 port Spliter/Combiner will cost about $100, maybe $50 if i do one by myself. So i decided to give Capacitor...
by Foliant
Saturday, 23 May 2015, 11:34 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Re: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

It should be a wilkonson.

Image
Red+Green = Lifted coil (coil --> Capacitor --> Soldering Pad)
Red only = to Ground

Image
No lifted coil on the Combiner
by Foliant
Saturday, 23 May 2015, 9:11 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)
Replies: 25
Views: 734

Combine two KL-203 (get a HI-Drive 8 MOSFET Amp)

Ever wondered why noone ever had combined cheap MOSFET Amps?


I wondered too and tryed it.
Quick look at my first test.

Image

Now i plan on doing a 16-Fet-Box.

Regards
Patrick
by Foliant
Friday, 15 May 2015, 7:18 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Can anyone ID this amp?
Replies: 9
Views: 475

Re: Can anyone ID this amp?

Two Words on a Amp like this... Maybe "Boomer Deluxe" and some number?

-- Friday, 15 May 2015, 15:24 PM --

Another Front-Panel but i think i found your Board in a "King Bee 250"

Image
by Foliant
Saturday, 09 May 2015, 12:28 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: HAs anyone used them ???
Replies: 48
Views: 1348

Re: HAs anyone used them ???

Thats why im asking, have seen both plastics and metall on the Blue-Switch KL-203P, the versions without Preamp i only know with plastic cover.
by Foliant
Saturday, 09 May 2015, 2:52 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: HAs anyone used them ???
Replies: 48
Views: 1348

Re: HAs anyone used them ???

Is the cover made from plastics or metall?
by Foliant
Friday, 01 May 2015, 5:11 AM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Another Amp noob needs help :P
Replies: 13
Views: 432

Re: Another Amp noob needs help :P

I have also learned not to trust the swr meters in radios. Try using your MFJ from behind the radio and you may get a different reading. I know that I did. My Saturn shows a 1.5 and the MFJ shows a 1.7 with the amps off. If youre using the integrated Meter (or a meter between Radio and Amp) while t...
by Foliant
Tuesday, 28 April 2015, 12:56 PM
Forum: JOKES & HUMOR
Topic: Ole..
Replies: 5
Views: 311

Re: Ole..

The best ive read since months...

But you should place a warning for the need of diapers before reading the Text.
by Foliant
Saturday, 28 March 2015, 8:33 AM
Forum: MOBILE/BASE INSTALL HELP
Topic: Massive 3/8 mount for Predator 10k
Replies: 9
Views: 826

Re: Massive 3/8 mount for Predator 10k

After i have talked to someone who has imported genuine Predator mounts in the past just to dump them i will get a **NON-SPONSOR**.

You tell it "Get what you pay for."
by Foliant
Wednesday, 25 March 2015, 17:46 PM
Forum: MOBILE/BASE INSTALL HELP
Topic: Massive 3/8 mount for Predator 10k
Replies: 9
Views: 826

Re: Massive 3/8 mount for Predator 10k

Shockingly, its what i was expecting but now im sure that this is really not a 50Ω connection. I was trying somewhat similar times ago, sticking the center with a 4mm Jack to a pipe type connector and bonded the twistet shield to the threading. I had to borrow a Computer, the Adapter and the right S...
by Foliant
Wednesday, 25 March 2015, 14:09 PM
Forum: MOBILE/BASE INSTALL HELP
Topic: Massive 3/8 mount for Predator 10k
Replies: 9
Views: 826

Re: Massive 3/8 mount for Predator 10k

For my 17" shaft Predator wants a H/D stabilizer stud with terminals. Designed for Predator and similar large coil type antennas. Recommended for 17 inch and longer shaft antennas. Requires terminal type coax cable. But I dont know what a terminal type coax is. What i can guess from the pics is that...
by Foliant
Wednesday, 25 March 2015, 9:36 AM
Forum: MOBILE/BASE INSTALL HELP
Topic: Massive 3/8 mount for Predator 10k
Replies: 9
Views: 826

Re: Massive 3/8 mount for Predator 10k

Ok, what is a "Lug Mount" and how are they used?
I cant see a cap or some other shielding for the part inside the car.

If i simply strip the koax an put the inner conductor on the mount there will happen funny things with my board electronics.
by Foliant
Wednesday, 25 March 2015, 6:36 AM
Forum: MOBILE/BASE INSTALL HELP
Topic: Massive 3/8 mount for Predator 10k
Replies: 9
Views: 826

Massive 3/8 mount for Predator 10k

How does a massive 3/8 mount for a Predator 10k look and where can i get one?

I have this one,
Image
but I need a mount where the antenne will press against the whole mount.


Regards
Patrick
by Foliant
Wednesday, 25 March 2015, 5:32 AM
Forum: GENERAL QUESTIONS
Topic: TOSHIBA TRANSISTORS
Replies: 19
Views: 1054

Re: TOSHIBA TRANSISTORS

Buzzweiser wrote:Then there's the European version called the MS-1051. Very rugged and very reliable and equal in price and quality to the Toshiba.
Dont forget the HF100-12 from ASI.
Have two in my KL400 getting 220W FM with no problem...
by Foliant
Sunday, 15 February 2015, 15:37 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Is the TC amplifiers related to the RM company?
Replies: 32
Views: 1682

Re: Is the TC amplifiers related to the RM company?

I made better pics today cause I will sell one of my BJ-300 ive stored for every thinkable replacement.
So if anyone is still curious about the inside:

Image
by Foliant
Tuesday, 10 February 2015, 9:23 AM
Forum: GENERAL DISCUSSIONS
Topic: Radio Shack Files for Bankruptcy
Replies: 50
Views: 2282

Re: Radio Shack Files for Bankruptcy

Why not using a Map overlay? :geek:

https://www.google.com/maps/d/viewer?mi ... MSZdo2DLbM" onclick="window.open(this.href);return false;
by Foliant
Thursday, 22 January 2015, 16:05 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Purchased Silver Streak 150A
Replies: 13
Views: 402

Re: Purchased Silver Streak 150A

Now we are for 99% sure the problem is before the Pills. a few times and others leads me mostly to a connection problem of the attenuator. There is, for now, no other idea in my head. I would check the Rs (okay and Cs) in line of the Signal, but first of all i would disconnect the conductors from th...
by Foliant
Wednesday, 21 January 2015, 13:44 PM
Forum: AMPLIFIERS / POWER SUPPLIES
Topic: Purchased Silver Streak 150A
Replies: 13
Views: 402

Re: Purchased Silver Streak 150A

silvereagle1 wrote:when he says leaking does he mean that literally or is that just a term?
There is no fluid inside the Pills.
Image

Again, can you notice any output? If not, most likely the Pills are pooped.