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1. [Amps] Need help with HB 8877 project (score: 1)
Author: (Bob Maser)
Date: Wed, 1 Jan 2003 20:26:36 -0500
I am new to this reflector so let me introduce myself. Bob Maser W6TR and I am in the Tampa, Florida area. I am in the process of building up an amp that will use a pair of 8877's. My plan is to use
/archives//html/Amps/2003-01/msg00001.html (7,429 bytes)

2. [Amps] Filament Choke Inductance (score: 1)
Author: (Bob Maser)
Date: Fri, 3 Jan 2003 12:13:06 -0500
Can anyone tell me what inductance do I need in the filament choke for a 3CX3000A7 for 80M. I built one back in the mid 90's and had to wind one around 3 ferrite 1/2" rods in order to keep the AC out
/archives//html/Amps/2003-01/msg00021.html (7,227 bytes)

3. [Amps] Chassis Cleaning (score: 1)
Author: (Bob Maser)
Date: Mon, 13 Jan 2003 15:01:56 -0500
I just received a chassis from a 2000D RF deck complete with socket and chimney for my 3CX3000A7 project. I would like to use the chassis but it is corroded from its past environment. Anyone have any
/archives//html/Amps/2003-01/msg00104.html (6,547 bytes)

4. [Amps] Vacuum relay isolation (score: 1)
Author: "Bob Maser" <>
Date: Fri, 22 Aug 2003 13:31:59 -0400
I just completed my Pi-L in my new 3CX3000 amp. I used a RB3 (DPDT) for each band with one of the poles of the relay switching the L1 and the other pole switching L2. A good friend of mine says that
/archives//html/Amps/2003-08/msg00017.html (6,766 bytes)

5. [Amps] Jennings CVDD-300-15S Cap (score: 1)
Author: "Bob Maser" <>
Date: Tue, 9 Sep 2003 10:06:50 -0400
I need a Jennings CVDD-300-15S cap for my amp. It has to be that specific cap in order to fit in the location in the RF deck. Can buy it outright or trade for either a CVDD-500-15S or CSVF-500-15S th
/archives//html/Amps/2003-09/msg00086.html (6,547 bytes)

6. [Amps] Jennings FM1 Flange (score: 1)
Author: "Bob Maser" <>
Date: Mon, 29 Sep 2003 17:42:16 -0400
If anyone needs a 300pf CVDD @ 15KV, I just found a source, They are located in Phoenix and they have 6 left, brand new in the box for $200. Ask for Jason Isoldi. Now I need a FM
/archives//html/Amps/2003-09/msg00207.html (6,891 bytes)

7. [Amps] Home built Amp (score: 1)
Author: "Bob Maser" <>
Date: Wed, 10 Dec 2003 23:06:57 -0500
The eBay listing 3064839871 really made my day. And to think that I spent all that money on custom scales for my amp when all you need is a sharpie. I also liked the ingenious lifting slots cut into
/archives//html/Amps/2003-12/msg00167.html (7,067 bytes)

8. [Amps] Chimney Material (score: 1)
Author: "Bob Maser" <>
Date: Tue, 24 Feb 2004 13:37:49 -0500
I bought my Silicone rubber sheet from Abbott Rubber Co., Inc. They are located in Elk Grove, IL and their LL# is 847-952-1800. They will sell a minimum of 1' x 3' and the cost of this is $35.11. The
/archives//html/Amps/2004-02/msg00225.html (7,449 bytes)

9. Re: [Amps] ITT Jennings part numbers (score: 1)
Author: "Bob Maser" <>
Date: Thu, 26 Feb 2004 08:44:10 -0500
The 5 in the part number says it's a 5KV test and 3KV working, 70A RMS Max. 73 Bob W6TR -- Original Message -- From: "Bill Turner" <> To: <> Sent: Wednesday, Febr
/archives//html/Amps/2004-02/msg00256.html (7,869 bytes)

10. [Amps] Power Supply Capacitor (score: 1)
Author: "Bob Maser" <>
Date: Tue, 27 Jul 2004 11:33:22 -0400
I am looking for a large oil filled cap made by Aerovox (I think). I believe the ratings are 36ufd @ 9KV. The approx. dimensions are 12" H x 8" W x 15" D. I am trying to replace the 4 GE caps that I
/archives//html/Amps/2004-07/msg00212.html (6,854 bytes)

11. [Amps] HD Cap Needed (score: 1)
Author: "Bob Maser" <>
Date: Sat, 7 Aug 2004 11:54:02 -0400
Since my original post earlier this month I have found more info on the cap I'm looking for. It was manufactured by Aerovox, part # PX27D2, 31.25ufd @ 9500VDC. Measures 14x8x14 HDW. Weighs about 50lb
/archives//html/Amps/2004-08/msg00067.html (6,361 bytes)

12. [Amps] Custom Power Transformers (score: 1)
Author: "Bob Maser" <>
Date: Sun, 19 Dec 2004 22:11:37 -0500
Slightly off the subject for this group but maybe someone has some info I can use. My HRO60 receiver just went silent key and I have traced the problem to the power transformer primary windings. They
/archives//html/Amps/2004-12/msg00242.html (7,327 bytes)

13. [Amps] Relays (score: 1)
Author: "Bob Maser" <>
Date: Thu, 23 Dec 2004 10:12:07 -0500
This may be a little off tune for the AMPS reflector but I need help(people that know me have said that for years). I am converting an old Collins 20V-3 broadcast transmitter and I need a relay to do
/archives//html/Amps/2004-12/msg00284.html (7,572 bytes)

14. [Amps] Potter & Brumfield Relays (score: 1)
Author: "Bob Maser" <>
Date: Sat, 25 Dec 2004 14:44:51 -0500
I am converting an old Collins 20V-3 to use on 75 and I want to use the power cutback circuit. This involves switching in some high wattage resistors into the HV line. I have 2 P&B PRD type DPST rela
/archives//html/Amps/2004-12/msg00316.html (7,107 bytes)

15. Re: [Amps] 8877 hf amplifier (score: 1)
Author: "Bob Maser" <>
Date: Thu, 30 Dec 2004 21:50:59 -0500
W2CQM/3 has amp components. His E Mail is It's getting harder and harder to find parts for amps. Put your list together and go to Dayton in May. Bob W6TR -- Original Message -- From:
/archives//html/Amps/2004-12/msg00402.html (7,686 bytes)

16. [Amps] Tetrodes in GG Configuration (score: 1)
Author: "Bob Maser" <>
Date: Wed, 19 Jan 2005 12:36:56 -0500
Being a proponent of the KISS philosophy, IMHO, it would seem appropriate to decide how much output one wants, how much drive power is available, and then pick the tube(s) that will satisfy the requi
/archives//html/Amps/2005-01/msg00369.html (6,938 bytes)

17. [Amps] Tektronix 130 L-C Meter (score: 1)
Author: "Bob Maser" <>
Date: Sun, 23 Jan 2005 09:37:06 -0500
FYI, I am selling Tektronix Type 130 L-C Meter on eBay. It is really nice condition and comes with the Delta Standard 30, which is necessary for calibration. You can check it out at: http://cgi.ebay.
/archives//html/Amps/2005-01/msg00481.html (6,715 bytes)

18. Re: [Amps] Two quick loading questions (score: 1)
Author: "Bob Maser" <>
Date: Thu, 10 Feb 2005 01:21:06 -0500
Full smoke out the door with an eye on the grids is the best way to tune a GG amp. KISS in full force. Bob -- Original Message -- From: "Rob & Terri Sherwood" <> To: "R.Measures" <r@s
/archives//html/Amps/2005-02/msg00381.html (11,639 bytes)

19. Re: [Amps] Re: 10dB and propagation (score: 1)
Author: "Bob Maser" <>
Date: Thu, 10 Feb 2005 09:14:44 -0500
Gain is measured in Pb, not Db. Pb = Pileups busted. Too much power is just enough. Bob -- Original Message -- From: "Ian White G3SEK" <> To: <> Sent: Thursday,
/archives//html/Amps/2005-02/msg00399.html (9,864 bytes)

20. Re: [Amps] Removing enamel insulation? (score: 1)
Author: "Bob Maser" <>
Date: Sun, 20 Feb 2005 18:28:31 -0500
On the flip side of the coin, I have some Formvar coated wire that is at least 15-20 years old and I find that if I try to wind it into a diameter smaller than 1" it cracks the formvar coating. Is th
/archives//html/Amps/2005-02/msg00633.html (9,777 bytes)

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