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Total 9 documents matching your query.

1. [AMPS] good, bad, ugly (score: 1): Author: n4uq@mindspring.com (Dick Byrd); Date: Tue, 25 Mar 1997 21:43:52 -0500; Reading all the comments about which amps are junk and which ones can run all night long, etc. inspires me to comment. I have a sack full of burned up Alpha parts in my Lab-shack. They melt down just; /archives//html/Amps/1997-03/msg00240.html (9,798 bytes)
2. [AMPS] good, bad, ugly (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Wed, 26 Mar 1997 08:26:26 EST; My experience with the big Ameritron amplifiers, from strictly a service viewpoint, is that tube generated heat is generally not a problem. Those amps use a decent blower and exhausting is not great,; /archives//html/Amps/1997-03/msg00242.html (9,095 bytes)
3. [AMPS] good, bad, ugly (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 26 Mar 97 07:27:53 -0800; ...snip... ...snip... ...snip... I would like to purchase the kaput/shorted tubes from these amplifiers, Dick. I plan on removing the anodes from them to see what went wrong on the insides. I intend; /archives//html/Amps/1997-03/msg00243.html (8,959 bytes)
4. [AMPS] good, bad, ugly (score: 1): Author: dick@merlin.libelle.com (Dick Flanagan); Date: Wed, 26 Mar 1997 10:40:28 -0800; Back in the 1 KW input days, it was said the venerable Drake L-4B could operate RTTY at full output more or less continuously. Was/is this is true statement? Was that old BA really that good? -- Dick; /archives//html/Amps/1997-03/msg00246.html (7,914 bytes)
5. [AMPS] good, bad, ugly (score: 1): Author: wa2moe@doitnow.com (wa2moe@doitnow.com); Date: Wed, 26 Mar 1997 12:35:54 -0700; I've owned and used an L4-B since February, 1978. If I operated rtty at full output the 3-500Z's would glow (and I'm still using the original pair). 400 watts output was more than enough for the tube; /archives//html/Amps/1997-03/msg00249.html (8,300 bytes)
6. [AMPS] good, bad, ugly (score: 1): Author: n4uq@mindspring.com (Dick Byrd); Date: Wed, 26 Mar 1997 16:20:05 -0500; Rich I shall be happy to donate some dud 8877's to science. I tried to sell some for $5 as paperweights at the hamfest last weekend...nobody wanted them. I gave one to a friend but I still have thre; /archives//html/Amps/1997-03/msg00250.html (10,376 bytes)
7. [AMPS] good, bad, ugly (score: 1): Author: w8jitom@worldnet.att.net (Tom Rauch (W8JI)); Date: Wed, 26 Mar 1997 14:28:00 -0500; Full power was 500-600 watts output. I got my first (non-working)L4B from a RTTY op who lived down the street from me in 1971. The only thing I recall having to change was the transformer. 73 Tom --; /archives//html/Amps/1997-03/msg00252.html (8,020 bytes)
8. [AMPS] good, bad, ugly (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 26 Mar 97 23:21:03 -0800; What was the rating of the 5 cathode RF negative feedback resistors, Garry? I wonder how Alpha would have known that one resistor initially failed by itself--as opposed to a simultaneous failure of; /archives//html/Amps/1997-03/msg00260.html (9,519 bytes)
9. [AMPS] good, bad, ugly (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 28 Mar 97 06:39:03 -0800; the tube envelope. Gas is one possibility. Gold melt-balls is another. Gas enters the tube through a bad ceramic-metal silver-solder joint . However, this is uncommon. Gold melt-balls are not. Gold; /archives//html/Amps/1997-03/msg00281.html (8,934 bytes)

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