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1. [Amps] Henry 1KD-5 Bias (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Fri, 4 Oct 2002 07:38:29 -0700 (PDT); Greetings Gurus, Wondering if someone knows for sure where the idling current for a single 3-500Z based amp should be. My 1KD-5 has a ZSAC of about 32mA (3300V Ep) but in looking at an Eimac datashee; /archives//html/Amps/2002-10/msg00024.html (6,954 bytes)
2. [Amps] DC On tube filaments (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Wed, 9 Oct 2002 08:42:27 -0700 (PDT); Greetings, I'm told by an old Army radio operator that they used to periodically reverse the filament polarity on a transmitter ( the exact nomenclature escapes me at the moment ) that used an 813 an; /archives//html/Amps/2002-10/msg00079.html (9,201 bytes)
3. [Amps] DC On tube filaments (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Wed, 9 Oct 2002 08:42:42 -0700 (PDT); Greetings, I'm told by an old Army radio operator that they used to periodically reverse the filament polarity on a transmitter ( the exact nomenclature escapes me at the moment ) that used an 813 an; /archives//html/Amps/2002-10/msg00080.html (9,148 bytes)
4. [Amps] 4-400A Anode Voltage??? (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Sun, 20 Oct 2002 07:47:56 -0700 (PDT); Greetings, Wondering, if anyone has ever exceeded 4KV on a 4-400. My present junkbox stock of plate transformers puts me at either below 3200 or at 4500-4600 volts. Curious as to how the tube would o; /archives//html/Amps/2002-10/msg00216.html (7,600 bytes)
5. [Amps] Odd Tube type???? (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Mon, 23 Sep 2002 20:15:36 -0700 (PDT); Greetings gurus, The club I belong to just received a generous donation of quite a bit of ham gear. Included was an odd looking (Navy) tube with 701A marked on it. It has a 4-leaf clover shaped anode; /archives//html/Amps/2002-09/msg00220.html (6,948 bytes)
6. [Amps] Which 3-500Z (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Wed, 28 Aug 2002 09:13:56 -0700 (PDT); Greetings amps enthusiasts, I've had precious little time to devote to my 4 x 813 project this summer, so it looks like another fall and winter with my Henry 1KD5. It's got an Eimac bottle in it that; /archives//html/Amps/2002-08/msg00301.html (7,926 bytes)
7. [Amps] Which 3-500Z (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Wed, 28 Aug 2002 12:47:16 -0700 (PDT); Thanks to all for your responses! I wondered about this many times myself.... it seems at times that the chassis is hotter to the touch directly above the filter section, that it is above the tube! I; /archives//html/Amps/2002-08/msg00306.html (7,848 bytes)
8. [Amps] Please Help. OT. (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Wed, 24 Jul 2002 16:57:57 -0700 (PDT); There's a boatload of manuals available at http://www.w7fg.com 73 == Microsoft is not the answer. Microsoft is the question.... and the answer is NO! Randy (AD5GB) ___________________________________; /archives//html/Amps/2002-07/msg00467.html (8,986 bytes)
9. [Amps] Air Chimneys for 3-500Z and Anode Dissipation (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Thu, 7 Mar 2002 11:36:21 -0800 (PST); I have a Henry 1KD-5 that uses a single 3-500Z with achimney and a squirrel cage blower system. It's been my understanding cooling the bases/pins of these tubes is very important that adequate coolin; /archives//html/Amps/2002-03/msg00132.html (8,137 bytes)
10. [AMPS] Copper Finger Stock Supplier (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Mon, 25 Feb 2002 11:10:23 -0800 (PST); Fair Radio has some. http://www.fairradio.com/0finger.htm __________________________________________________ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games http://sports.yahoo.com; /archives//html/Amps/2002-02/msg00270.html (7,834 bytes)
11. [Amps] 4-65A data / curves (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Tue, 26 Feb 2002 21:12:34 -0800 (PST); Greetings, Would anyone happen to have a scanned set of curves and operating data for the 4-65 that they'd be willing to share? I have only a brief entry in my RCA TT-5 manual and can't seem to turn; /archives//html/Amps/2002-02/msg00297.html (6,577 bytes)
12. [AMPS] band switch location (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Sun, 13 Jan 2002 11:54:28 -0800 (PST); Is this what you're looking for? http://www.fairradio.com/tapswi.htm http://www.fairradio.com/3z9605.htm ________________________________________________________________ _____________________________; /archives//html/Amps/2002-01/msg00091.html (8,735 bytes)
13. [AMPS] 4CX1000A markings???? (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Wed, 7 Nov 2001 20:33:29 -0800 (PST); Greetings, I just aquired among other things, an Eimac 4CX1000A/8168. It looks very unused though there are marks indicating that it's been in a socket. There's some text on the side of the anode in; /archives//html/Amps/2001-11/msg00138.html (7,027 bytes)
14. [AMPS] B&W Filament chokes (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Wed, 7 Nov 2001 20:35:18 -0800 (PST); Greetings, I recently aquired a B&W FC-15 and a couple FC-30s. I know they're filament chokes but wonder if anyone knows anything more about them. Thanks _____________________________________________; /archives//html/Amps/2001-11/msg00139.html (7,312 bytes)
15. [AMPS] B&W Filament chokes (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Wed, 7 Nov 2001 21:49:11 -0800 (PST); Thanks Phil, Need to have 160. What needs to be done to get 160 meter operation with them? __________________________________________________ Do You Yahoo!? Find a job, post your resume. http://caree; /archives//html/Amps/2001-11/msg00142.html (7,963 bytes)
16. [AMPS] Bandswitch parts? (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Mon, 12 Nov 2001 21:07:33 -0800 (PST); Greetings, Anyone know of any sources for decent bandswitch components at a reasonable price? Depending on the switches, I may need to find some type of drive mechanism with which to operate a second; /archives//html/Amps/2001-11/msg00211.html (7,743 bytes)
17. [AMPS] Screen voltage effects??? (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Wed, 14 Nov 2001 22:03:21 -0800 (PST); Greetings, In designing my screen supply I began to ponder a few things. Wonder if anyone can enlighten me a little. I was trying to decide how much of a usable ( and user adjustable ) voltage range; /archives//html/Amps/2001-11/msg00251.html (8,087 bytes)
18. [AMPS] Screen voltage effects??? (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Thu, 15 Nov 2001 12:50:48 -0800 (PST); I'm glad I'm not the only one experiencing difficulty in finding data. :-) I guess I never intended to drop to a level as low as 10%. I was more interested in the effect of the scenario where I decid; /archives//html/Amps/2001-11/msg00265.html (9,031 bytes)
19. [AMPS] UTC Transformer help???? (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Mon, 19 Nov 2001 19:02:57 -0800 (PST); Greetings, This is maybe a little off topic, but I was going through my junk boxes looking for a bias/screen supply xfmr for my amp project and found one that has me a bit stumped. It's a UTC CG-125.; /archives//html/Amps/2001-11/msg00367.html (7,137 bytes)
20. [AMPS] Screen supply regluation??? (score: 1): Author: ad5gb@yahoo.com (Randall DuCharme); Date: Mon, 26 Nov 2001 07:05:54 -0800 (PST); Greetings, I recently completed prototyping my (all tube) screen supply/regulator and the question came to mind, "How much regulation is sufficient". In initial testing it would appear that the circu; /archives//html/Amps/2001-11/msg00431.html (7,482 bytes)

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