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Total 538 documents matching your query.

241. [AMPS] 8873 retro in a Heathkit SB-230 (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Tue, 25 Jul 2000 16:19:57 -0700
re: 8873 for Heathkit SB-230 Hi Dennis, The 8873 is still available, but quite costly. A very popular tetrode with almost if not exact physical mounting is the 8560, often seen and pulled from commer
/archives//html/Amps/2000-07/msg00159.html (7,918 bytes)

242. [AMPS] coil winder (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Thu, 1 Jun 2000 00:10:08 -0700
If anyone would like to see a great coil - choke winder, an original moreco unit is on Ebay right now. I have the same unit myself. I have nothing to do with the seller, a picture of the unit is show
/archives//html/Amps/2000-06/msg00005.html (6,559 bytes)

243. [AMPS] Motorola 887 triode amplifier circuit available on sonic (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Sun, 4 Jun 2000 21:17:31 -0700
re: 8877 amplifier diagram available. Hello there, While thumbing through my files, I came across an 8877 amplifier for 2-18 MHz operation. This was a typical Embassy Radio Equipment Amplifier offere
/archives//html/Amps/2000-06/msg00029.html (7,885 bytes)

244. Fw: Re: [AMPS] Buy/Sell (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Mon, 5 Jun 2000 19:04:34 -0700
Two Cents... I find nothing wrong with receiving items for sale Email through amps, but the shear volume of the traffic from "that member" might lead one to the impression he's trying to run a/his bu
/archives//html/Amps/2000-06/msg00046.html (8,609 bytes)

245. [AMPS] RF pre amps for VLF (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Mon, 5 Jun 2000 19:16:37 -0700
From: "Tom Tishken KD4WOV" <kd4wov@earthlink.net> Hi Tom, Yes, send my your Mailing Address and I'll pop you off a photo copy of a nice one. It would be worth your while to try and find a copy of the
/archives//html/Amps/2000-06/msg00047.html (8,071 bytes)

246. [AMPS] six meter conversion (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Tue, 6 Jun 2000 21:53:23 -0700
This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --__JNP_000_4eb5.1953.2544 Content-Type: text/plain Content-Tra
/archives//html/Amps/2000-06/msg00074.html (11,727 bytes)

247. [AMPS] mrf 150 amplifier boards (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Fri, 9 Jun 2000 10:56:32 -0700
Hi Jeff, There's a Surplus Outlet selling amplifier boards on Ebay. I've bid on and won some of these boards which contain matched quad sets (green dot) of mrf 150's in a real nice 300 watt continous
/archives//html/Amps/2000-06/msg00093.html (8,134 bytes)

248. [AMPS] Collins 30L-1 (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Sun, 11 Jun 2000 22:09:53 -0700
To: <amps@contesting.com> The Collins 30L-1 has some small buss wire section(s) underneath that were designed into the amplifier as a protection fuse. That information is straight from an Auth Colli
/archives//html/Amps/2000-06/msg00131.html (7,414 bytes)

249. [AMPS] small orders with Newark (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Sun, 11 Jun 2000 21:24:49 -0700
Grant, I've talked over the small order problem with my local Newark Rep. She says there's no problem with small orders like this, just try not to nickle and dime her to death. If you'd like to order
/archives//html/Amps/2000-06/msg00132.html (8,168 bytes)

250. [AMPS] s meter calibration (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Sun, 11 Jun 2000 22:33:05 -0700
Had a quick look at the site... Their amplification abuse page says 3 dB is a one s-unit change on your receiver meter. I was under the impression receiver s-meters were calibrated 50uV for S-9 and 6
/archives//html/Amps/2000-06/msg00134.html (9,425 bytes)

251. [AMPS] mrf 150 boards at CTR Surplus (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Wed, 14 Jun 2000 08:55:42 -0700
re: intech amplifier boards which have a quad set of MRF 150 green dot semiconductors on board. Hello again, Enough interest had been expressed to me about the mrf 150 amplifier boards I mentioned ea
/archives//html/Amps/2000-06/msg00198.html (8,048 bytes)

252. [AMPS] diode switcher (tr sw) ready for down load... (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Thu, 15 Jun 2000 22:42:57 -0700
CQ Contest... From: Dan hearn <dhearn@ix.netcom.com> we're ready to rock and roll with the goodies... http://sonic.ucdavis.edu on the amateur radio pages. *Note they are relatively large zip files wh
/archives//html/Amps/2000-06/msg00222.html (7,741 bytes)

253. [AMPS] sb 230 with 572b's on board (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Thu, 15 Jun 2000 23:01:33 -0700
Hi Mitch, I don't have any information in regards to your post, but I thought I'd mention the SB-230 listed on Ebay converted to a pair of 572b tubes. There's a pic of the internals shown if anyones
/archives//html/Amps/2000-06/msg00223.html (7,791 bytes)

254. [AMPS] re: 4CX-1000A or 4CX-1500A Amplifier Plans (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Sun, 18 Jun 2000 20:10:19 -0700
try: http://sonic.ucdavis.edu ...the amateur radio pages. There is a Collins 30-S1, November 1957 QST Article and the spec sheet for the tube all ready to down load. All for the 4cx1000 cheers skipp
/archives//html/Amps/2000-06/msg00264.html (7,376 bytes)

255. [AMPS] tubes in oil... (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Sun, 18 Jun 2000 20:02:39 -0700
re: amplifier circuits cooled in oil bath I removed some 3-500z tubes from a similar application. They and their matching filament xmfrs were in oil for 20 years plus. Everything looks brand new and
/archives//html/Amps/2000-06/msg00265.html (7,640 bytes)

256. [AMPS] grounded screen tetrode operation. (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Mon, 19 Jun 2000 08:16:55 -0700
I had to build an additional power supply, that was pretty much it. I apply drive to the cathode. It's pretty important that you ensure the power supplies are regulated or pretty "stiff". Collins wen
/archives//html/Amps/2000-06/msg00275.html (7,882 bytes)

257. [AMPS] ssr's in qro amps (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Sat, 24 Jun 2000 10:37:05 -0700
re: ss relays in amplifier hv supplies I've had a recent look at the new amplifier pics. One of the units shows the use of 3 solid state relays for control. I've always been worried about the use of
/archives//html/Amps/2000-06/msg00380.html (8,857 bytes)

258. [AMPS] SB-220 to six (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Sun, 14 May 2000 19:55:22 -0700
The Eimac news letters mentioned here in the past many times outline the swan conversion to six (50MHz) . A quick shout to Reid Brandon at Eimac will promptly bring a copy of the article via us mail.
/archives//html/Amps/2000-05/msg00175.html (7,330 bytes)

259. Fw: [AMPS] QSK Circuits (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Tue, 16 May 2000 22:27:26 -0700
Hi Bill, It may not be any great help to you, but I've posted the Heathkit SB-1000 QSK kit diagram and board pic on the http://sonic.ucdavis.edu server. Just page over to the amateur radio section. c
/archives//html/Amps/2000-05/msg00204.html (7,492 bytes)

260. [AMPS] Re: 31LQ6 warmup (score: 1)
Author: nospam4me@juno.com (nospam4me@juno.com)
Date: Tue, 16 May 2000 22:48:02 -0700
Hi Alek, Marv is right, my spec sheet for that tube (RCA Brand) states the warmup as 11 seconds min. Typical of sweep tubes. Be sure to go over to my http://sonic.ucdavis.edu server and down load my
/archives//html/Amps/2000-05/msg00205.html (9,043 bytes)

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