Search String: Display: Description: Sort:

Results:

References: [ +from:a.fewster@optusnet.com.au: 9 ]

Total 9 documents matching your query.

1. Re: [Amps] Schematic needed for Henry 8K Ultra amp (score: 1)
Author: Adrian <a.fewster@optusnet.com.au>
Date: Fri, 29 Apr 2022 13:15:10 +1000
https://www.manualslib.com/manual/961793/Henry-Radio-3k-Ultra.html?page=30#manual You can download the whole pdf manual free there 73 vk4tux On 29/4/22 12:49, Gary Schafer wrote: enry 8k ultra amp __
/archives//html/Amps/2022-04/msg00028.html (7,734 bytes)

2. Re: [Amps] Schematic needed for Henry 8K Ultra amp (score: 1)
Author: Adrian <a.fewster@optusnet.com.au>
Date: Fri, 29 Apr 2022 13:16:58 +1000
Oops sorry re the html link, here is the 8k page ; https://www.manualslib.com/manual/961793/Henry-Radio-3k-Ultra.html?page=33#manual 73 vk4tux On 29/4/22 12:49, Gary Schafer wrote: enry 8k ultra amp
/archives//html/Amps/2022-04/msg00029.html (7,283 bytes)

3. Re: [Amps] Why does power output increase? (score: 1)
Author: Adrian <a.fewster@optusnet.com.au>
Date: Sat, 4 Jun 2022 22:32:53 +1000
That's a good take on a likely reason. A voltmeter across the resistor then monitored, would confirm it, if VD drops. vk4tux 1. You want 5.0 volts under full bore TX, not at receive. 2. I'd suspect t
/archives//html/Amps/2022-06/msg00005.html (9,819 bytes)

4. Re: [Amps] RF-Kit RF2K-S Amp - Ham Radio Amplifier (score: 1)
Author: Adrian <a.fewster@optusnet.com.au>
Date: Sun, 5 Jun 2022 16:22:27 +1000
I have been looking at the Flexradio Power Genius XL. How they filter all generated harmonics to an internal 400w rated DL is impressive. I have a feeling that, that harmonic generation, reflected ba
/archives//html/Amps/2022-06/msg00022.html (9,142 bytes)

5. Re: [Amps] Why does power output increase? (score: 1)
Author: Adrian <a.fewster@optusnet.com.au>
Date: Sun, 5 Jun 2022 21:49:16 +1000
Would it be beneficial to TX relay shunt a FT primary VD resistor on key to compensate for TX volt drop to the amp, and still maintain a 5.0v RX filament feed for extended tube life ? vk4tux He notes
/archives//html/Amps/2022-06/msg00028.html (10,891 bytes)

6. Re: [Amps] Blowing out finals on a Icom 7300 using a Ameritron AL 80B. Help Please! (score: 1)
Author: Adrian <a.fewster@optusnet.com.au>
Date: Tue, 7 Jun 2022 10:21:40 +1000
While running a atu between txcr and amp is not recommended, in your case I would do this while testing to get Capacitive coupling DC isolation, protecting the txcr finals against a a DC threat. An o
/archives//html/Amps/2022-06/msg00069.html (12,270 bytes)

7. Re: [Amps] 4 KW? (score: 1)
Author: Adrian <a.fewster@optusnet.com.au>
Date: Fri, 24 Jun 2022 12:00:32 +1000
Alek, What faults / problems did you find or hear about with the 728 ? 73 Adrian I would not touch an amplifier that uses that tube. 73, Alek, VK6APK _______________________________________________ A
/archives//html/Amps/2022-06/msg00108.html (8,150 bytes)

8. Re: [Amps] 4 KW? (score: 1)
Author: Adrian <a.fewster@optusnet.com.au>
Date: Fri, 24 Jun 2022 15:35:39 +1000
Thanks Alek, That advice lines up with what I have seen on VKC, and I wondered why re; 4CX1000 tubes used on DX2, DX3 (2x). 73 Adrian Horror stories abound of people spending hundreds of dollars agai
/archives//html/Amps/2022-06/msg00110.html (10,751 bytes)

9. Re: [Amps] Cleaning and lubrication of ribbon variable coil (score: 1)
Author: Adrian <a.fewster@optusnet.com.au>
Date: Mon, 15 Aug 2022 23:46:47 +1000
Being 'pure silver' component ; https://www.cool-amp.com/conducto-lube?_vsrefdom=adwords&gclid=EAIaIQobChMI4Pzt7_zI-QIVA7qWCh2bggXzEAAYASAAEgIexPD_BwE I thought it may be expensive ; _*CONDUCTO-LUBE
/archives//html/Amps/2022-08/msg00014.html (9,216 bytes)

Current List: 1 - 9
Page: [1]
This search system is powered by Namazu