- 1. Re: [Amps] Dayton Hamvention (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Wed, 8 May 2013 18:53:00 +0000
- You can add me to your list Bill, have not missed one in 35 years. No vendor space, I will be a browsing purchaser (if that's a valid word). I will stop by and say hello and maybe even buy something.
- /archives//html/Amps/2013-05/msg00121.html (8,249 bytes)
- 2. Re: [Amps] 4CX1000A project (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Mon, 28 Oct 2013 17:04:24 +0000
- Vic, love the construction, can you tell me who's blower that is? All the ones I have found so far are much thicker, the under chassis mounting is excellent. 73 - Dave, N8ZFM ________________________
- /archives//html/Amps/2013-10/msg00436.html (11,375 bytes)
- 3. [Amps] GS23B Plate load resistance for HF (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Mon, 28 Oct 2013 17:54:43 +0000
- I am attempting to calculate the Pi-L tank values for a GS23b HF amplifier I am building and I am a bit confused. I know this tube is usually used at VHF and above but OM power does use one at HF and
- /archives//html/Amps/2013-10/msg00437.html (7,630 bytes)
- 4. Re: [Amps] GS23B Plate load resistance for HF (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Tue, 29 Oct 2013 14:16:21 +0000
- Thank you all for the responses. Carel I have seen your site and I will try your tube model software. Jim, I agree on stray capacitance, I am using a value of 5pf for the estimate but that's a pure g
- /archives//html/Amps/2013-10/msg00441.html (7,716 bytes)
- 5. Re: [Amps] GS23B Plate load resistance for HF (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Tue, 29 Oct 2013 15:10:15 +0000
- I got a socket from a ham in Slovakia (Homemade), Branko S52V, and he did a very nice job on the socket with copper finger stock. I attached a small picture. Have not yet of course used it but the tu
- /archives//html/Amps/2013-10/msg00443.html (9,512 bytes)
- 6. [Amps] Large Variac controlling HV power supply (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Wed, 30 Oct 2013 19:52:04 +0000
- Is there any disadvantage (other than size) in utilizing a large 30 amp variac to supply the line voltage to the HV transformer in a power supply? I have a 5000V 3A transformer that came from an indu
- /archives//html/Amps/2013-10/msg00453.html (6,998 bytes)
- 7. Re: [Amps] GS23B Plate load resistance for HF (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Thu, 31 Oct 2013 14:38:07 +0000
- Yes I agree and that is what has me guessing, I donšt have a load line for the tube in HF service and since efficiency is a input value I donšt know if 50% or 60a5 or some other number is correct and
- /archives//html/Amps/2013-10/msg00465.html (12,964 bytes)
- 8. Re: [Amps] Measuring IMD (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Mon, 4 Nov 2013 02:51:55 +0000
- So here is a newby question, Let's say I have a HP8924C SA and it has a max of 60W input, and I want to check IMD on a 1.5KW amplifier. Do I do this with a T connector in the line to the dummy load?
- /archives//html/Amps/2013-11/msg00041.html (10,209 bytes)
- 9. [Amps] FW: Fan sounds like F-15 (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Sun, 24 Nov 2013 20:14:22 +0000
- Is it fan noise or do you possibly need some type of suspension rubber mount for the fan? If it's the mounting transmitting noise to the chassis you might be able to solve that without going to the t
- /archives//html/Amps/2013-11/msg00413.html (9,986 bytes)
- 10. Re: [Amps] Need small chain and sprockets for tuner project (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Sat, 1 Feb 2014 02:25:24 +0000
- Small Parts was bought out by Amazon, they now carry all the same parts, however I have yet to find a catalog. You can browse but trying to pair the sprockets and chain I found difficult as they are
- /archives//html/Amps/2014-01/msg00355.html (12,925 bytes)
- 11. Re: [Amps] W6PO 2m amp drawings (score: 1)
- Author: Dave Trainor <dave@n8zfm.com>
- Date: Wed, 1 Oct 2014 02:00:07 +0000
- If you find these diagrams for the cabinet, I would love a copy too. I have that same pdf that lists most of the metal parts and dimensions but it would be nice to have the cabinet too for exact dupl
- /archives//html/Amps/2014-09/msg00044.html (10,649 bytes)
This search system is powered by
Namazu