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Total 167 documents matching your query.

141. [AMPS] That tinkling noise (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Tue, 27 Oct 1998 04:03:25 -0800
Hi Al, Yep, that's it. A satisfying sound to anyone who has ever used glass tubes after an enjoyable evening on the air! 73, Dan Magro W7RF, (member SCDXC, SCCC) Rugged, Reliable Henry HF Amps are "I
/archives//html/Amps/1998-10/msg00403.html (8,581 bytes)

142. [AMPS] Tube compliment of the 2KD-5 (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Tue, 27 Oct 1998 14:19:04 -0800
Hi Lane, I'm sorry I didn't answer this right away, it slipped through the cracks! 2KD-5 uses a pair of 3-500Z tubes. 73, Dan Magro W7RF, (member SCDXC, SCCC) Rugged, Reliable Henry HF Amps are "Inst
/archives//html/Amps/1998-10/msg00413.html (9,147 bytes)

143. [AMPS] AL-811 (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Wed, 28 Oct 1998 10:47:01 -0800
Hi Doug and the boys, I never understand why guys get the cheapest amp known to mankind and then want to press it for more than it was designed for? Use it for the power it will put out safely and sa
/archives//html/Amps/1998-10/msg00435.html (9,792 bytes)

144. [AMPS] AL-811 (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Wed, 28 Oct 1998 15:19:17 -0800
Hi Doug, I DO understand, believe me! What I meant was for you to use an amplifier in a resonable fashion as per what it is. Recognize that and don't push it. Not everyone has extra money, I understa
/archives//html/Amps/1998-10/msg00439.html (10,446 bytes)

145. [AMPS]"cheapest amp known to mankind" (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Wed, 28 Oct 1998 22:11:09 -0800
OK, let me try again. Answers below. Ham Radio is and has been my number one hobby since 1972. I am fortunate to also make this my business and still be active everyday. Nobody is telling you to spen
/archives//html/Amps/1998-10/msg00448.html (11,786 bytes)

146. [AMPS] PA70V (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Thu, 29 Oct 1998 20:47:59 -0800
This is a multi-part message in MIME format. --=_NextPart_000_0158_01BE037D.69994400 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Hi guys, How much is a Alpha PA70V
/archives//html/Amps/1998-10/msg00484.html (9,778 bytes)

147. [AMPS] filament voltage questions (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Sun, 6 Sep 1998 17:41:42 -0700
Hi Steve, You're right, tubes ain't cheap anymore but few manufacturers respect the HAMS right to know and investigate. There's an amplifier manufacturer out there that DOESN'T provide full schematic
/archives//html/Amps/1998-09/msg00081.html (12,050 bytes)

148. [AMPS] Question on reforming caps NCL2000 (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Fri, 11 Sep 1998 10:46:56 -0700
Hi Dick, For specifics on the NCL2000 I'm sure that Carl KM1H who was on the development team for that amp in 60's will give you (and hopefully all of us) some interesting tid bits on this classic. A
/archives//html/Amps/1998-09/msg00138.html (12,363 bytes)

149. [AMPS] Rf Sampler circuits 10kw wattmetres Rf Ampmeters (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Sun, 27 Sep 1998 12:25:00 -0700
Don't forget that 10KW Low Pass Filter! Gotta keep it clean ya know! See http://radiodan.com/Henry/Amp_specs/10kw_lpf.htm 73 Dan Magro, RADIODAN W7RF, (member SCDXC) Henry HF Amps are "Instant on" fo
/archives//html/Amps/1998-09/msg00303.html (11,918 bytes)

150. [AMPS] Series Parallel Electrolytics & Current (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Mon, 28 Sep 1998 11:23:18 -0700
Hi Carl and Igor, Why such a mess? This insistance on using electrolytic caps in such quantities puzzles me? HENRY uses a single 16UF @ 8KV oil filled and is available for $125 (new). This is less th
/archives//html/Amps/1998-09/msg00316.html (15,818 bytes)

151. [AMPS] Series Parallel Electrolytics & Current (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Mon, 28 Sep 1998 13:18:19 -0700
If someone wants to use 24 capacitors and all the needed resistors and labor and expense (24 X $10-$14 each)as a better option to an oil filled or two, then go for it. Just because they all CAN be st
/archives//html/Amps/1998-09/msg00318.html (11,802 bytes)

152. [AMPS] Henry 3K-A info?? (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Sun, 2 Aug 1998 11:54:01 -0700
Hi Steve, It's no coincidence that these fine amplifiers are still in service. The proof is in performance, year after year after year........ The 1000 MP should drive it in a similar way to the vene
/archives//html/Amps/1998-08/msg00002.html (9,953 bytes)

153. [AMPS] Bleeder Resistor (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Fri, 14 Aug 1998 09:32:41 -0700
Carsten, It's all a matter of how safe you want to be. You will simply bleed down the HV slower at the higher rate of resistance and dissipate less power doing so. 73, Dan Magro Radiodan W7RF, Porta
/archives//html/Amps/1998-08/msg00136.html (8,586 bytes)

154. [AMPS] Mobile Amplifier (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Sun, 5 Jul 1998 19:32:34 -0700
Hi Jim, I use the HENRY SS500 and it works flawlessly even with the varying SWR of a mobile environment. I too have an ICOM IC-706 and a homebrew screwdriver antenna. I only use the front car battery
/archives//html/Amps/1998-07/msg00031.html (8,346 bytes)

155. [AMPS] Calculating input vs output (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Mon, 20 Jul 1998 10:43:59 -0700
Hi Al, What you're asking here is the efficiency of a particular amp. Generally, commercial multiband amps for HF tend to be between 50-75% efficient (more on 160/80/40M, less on 10/15M). Yes the eff
/archives//html/Amps/1998-07/msg00108.html (8,585 bytes)

156. [AMPS] IC-730/SB-200 ALC (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Mon, 27 Jul 1998 20:03:02 -0700
Hi Charlie, Your Icom 730 won't be able to overdrive the SB200. Just tune it up properly for each frequency you operate on and you'll see about 500-600 watts out with good tubes and about 100 watts d
/archives//html/Amps/1998-07/msg00191.html (9,334 bytes)

157. [AMPS] Solid State 1kw amp (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Wed, 3 Jun 1998 20:12:32 -0700
Hi Dave and the group, Indeed Motorola application notes have been of great benefit to builders of solid state HF amps (VHF too). What you need to ask for is the "RF Device Data" (DL110) book. Get th
/archives//html/Amps/1998-06/msg00050.html (10,851 bytes)

158. [AMPS] Solid State 1kw amp (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Wed, 3 Jun 1998 21:30:38 -0700
Well now I couldn't resist commenting after the last commercial. For example, it was just mentioned that "ALPHA 374, 374A and 78 amps (up to 24 years old now) are out there on the hf bands doing exac
/archives//html/Amps/1998-06/msg00052.html (11,749 bytes)

159. [AMPS] Need Millen HV connectors (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Fri, 5 Jun 1998 07:48:33 -0700
Hi Bill, Henry sells those connectors as we still use them today on our RF decks. Very reliable, no need to look for an alternative. I don't know if our in-stock blowers would be the same size as you
/archives//html/Amps/1998-06/msg00071.html (10,068 bytes)

160. [AMPS] RE: Counterpoints and corrections to Radiodan (score: 1)
Author: RFpower@radiodan.com (Radiodan W7RF)
Date: Sat, 6 Jun 1998 12:58:46 -0700
I've only seen "SPIN" this good from President Clinton! I won't burden those not interested in this thread on the [AMPS] reflector. However, if you are interested see the page http://radiodan.com/Spi
/archives//html/Amps/1998-06/msg00100.html (8,367 bytes)


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