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1. [Amps] How light can you make a 500W amplifier? (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Tue, 15 Oct 2002 12:24:36 -0500
500W in a small, light package? How about the Heathkit SB-230 ?? Don N8DE
/archives//html/Amps/2002-10/msg00144.html (8,924 bytes)

2. [Amps] How light can you make a 500W amplifier? (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Tue, 15 Oct 2002 16:26:34 -0500
Comments inserted below: NO .. I mean the SB-230 .. it uses a conduction-cooled triode [8873] and has a built-in power supply. I have one. Don N8DE
/archives//html/Amps/2002-10/msg00157.html (9,687 bytes)

3. [Amps] Solid State (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Wed, 16 Oct 2002 07:09:39 -0500
Those "CB-type" amplifiers are NOTORIOUS for being very NON-linear, very dirty with high IMD, and very high harmonic content. Why not use it for a boat anchor, doorstop, or paperweight and get a REAL
/archives//html/Amps/2002-10/msg00167.html (7,568 bytes)

4. [Amps] Blower noise (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Fri, 18 Oct 2002 20:21:42 -0500
All measurements in 'db' ..really dB ... are comparisons ... to some 'standard'. 20 dB means NOTHING ... 20 dB above/below/gain/loss is meaningfull. Now .. most SOUND measurements are in dBa .. that'
/archives//html/Amps/2002-10/msg00211.html (9,044 bytes)

5. [Amps] Re: [Amps] Re: [Amps] Re: [Amps] Re: [Amps ] Re: [Amps ]Bird® 43 Ma nual (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Fri, 05 Apr 2002 13:30:32 -0500
<snip> Please tell me how you get a SWR of ZERO ?????? Don - N8DE
/archives//html/Amps/2002-04/msg00183.html (10,665 bytes)

6. [Amps] Loading Caps needed (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Mon, 15 Apr 2002 19:54:42 -0400
Bill, I'd suggest using ceramic doorknob caps .. they're quite plentiful and inexpensive compared to the micas. Contact me off the reflector .. I will sell you some. Don - N8DE
/archives//html/Amps/2002-04/msg00374.html (7,449 bytes)

7. [Amps] CB amps on e-Bay (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Wed, 17 Apr 2002 21:37:51 -0400
All 'homebrew' amplifiers are OK to the FCC .. but, 'manufactured amplifiers' [including KITS] for operation below 144 mHz require 'certification'. The FCC website for ALL 'certificated' amplifiers i
/archives//html/Amps/2002-04/msg00412.html (9,085 bytes)

8. [Amps] Solid State HF amps and kits (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Thu, 18 Apr 2002 20:11:47 -0400
Comment inserted below: EXCUSE ME? There are NO TEXAS STAR AMPLIFIERS that are FCC Certificated >>>>>> NONE >>>>>> see: http://ftp.fcc.gov/Bureaus/Engineering_Technology/Databases/eadf.dat/eadprog/Tr
/archives//html/Amps/2002-04/msg00455.html (9,905 bytes)

9. [Towertalk] WARNING (score: 1)
Author: Don Havlicek <n8de@thepoint.net>
Date: Sat, 23 Mar 2002 19:40:20 -0500
I just received an email from : artw4aa It is infected with a MIME v*i*r*u*s that opens automatically upon receipt. My INBOX is corrupted .. and I cannot receive email now. Not sure if I can retrieve
/archives//html/Amps/2002-03/msg00002.html (6,803 bytes)

10. [Towertalk] Beverage terminations (score: 1)
Author: Don Havlicek <n8de@thepoint.net>
Date: Sat, 23 Mar 2002 22:26:00 -0500
Gang, In an earlier post, I mentioned a large number of old carbon composition resistors that I have. Having checked over 100 old carbon resistors with my DVM, I'm sorry to report that the old-timer
/archives//html/Amps/2002-03/msg00003.html (6,991 bytes)

11. [Amps] 10 Meters (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Tue, 12 Mar 2002 17:54:58 -0500
As an 'old-timer', I can see the difficulty that has arisen due to the ATROCIOUS 'International Phonetic Code' that was adopted because it was in use by the US Military! There is a simpler phonetic c
/archives//html/Amps/2002-03/msg00266.html (10,876 bytes)

12. [Amps] Terminology Question (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Wed, 20 Mar 2002 21:24:04 -0500
In the early days of radio, most all circuits were BATTERY powered. The delineation of A, B, C, etc ... referred to the batteries used to power such devices. The A battery was used to power the filam
/archives//html/Amps/2002-03/msg00452.html (9,339 bytes)

13. [Amps] calculations (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Thu, 21 Mar 2002 15:59:51 -0500
Seems to me there is an easier solution: 1. Connect a SWR analyzer [such as the MFJ-259] across the 50-ohm terminals of the PI. 2. Connect a NON-inductive potentiometer across the output terminals of
/archives//html/Amps/2002-03/msg00478.html (7,974 bytes)

14. [Amps] Amps that are GI7B candidates ? (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Fri, 22 Mar 2002 11:56:52 -0500
Doug Look here: http://www.tomstubes.com/amp-conversions/ This is a conversion of a Dentron Clipperton-L to GI7B. Don - N8DE
/archives//html/Amps/2002-03/msg00503.html (7,558 bytes)

15. [AMPS] Did you own one? (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Fri, 08 Feb 2002 12:34:18 -0500
Jim, I own one .. had to replace the power supply components, including the transformer .. put in a Peter Dahl .. have had lots of fun with it ..[it keeps the shack warm in the winter!] Only other mo
/archives//html/Amps/2002-02/msg00075.html (8,187 bytes)

16. [AMPS] HA-10 Conversion to 572B Tubes (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Thu, 21 Feb 2002 14:16:34 -0500
Bill, If you increase the anode voltage, my greatest concern would be the voltage breakdown ratings of the tuning caps and the tank coil. Don't think there's much room for error there! Most Heathkit
/archives//html/Amps/2002-02/msg00219.html (8,713 bytes)

17. [AMPS] Source of Power Carbon Resistors Needed... (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Sun, 24 Feb 2002 18:41:58 -0500
Warren, You must have missed my previous post [couple weeks ago]. I bought an estate .. has LOTS of old, carbon composition resistors, though I haven't inventoried them yet. I'm going to post to the
/archives//html/Amps/2002-02/msg00260.html (7,960 bytes)

18. [Amps] Re-subscribe ?? (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Mon, 25 Feb 2002 18:22:48 -0500
Yes.. also got one from 'towertalk', too! Don N8DE
/archives//html/Amps/2002-02/msg00276.html (7,425 bytes)

19. [AMPS] YC-179 Anyone (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Wed, 09 Jan 2002 22:05:12 -0500
YC-179 is better known as the 3CPX5000 You might search for data with that 'moniker. Don N8DE -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative request
/archives//html/Amps/2002-01/msg00079.html (6,935 bytes)

20. [AMPS] Relays (score: 1)
Author: n8de@thepoint.net (Don Havlicek)
Date: Fri, 25 Jan 2002 10:40:06 -0500
Ed, I checked all the 3PDT 10A contact relays I have .. they're ALL 120v AC. I have FOUR of them. Interested? $5 each + shipping. 73 Don N8DE To: <amps@contesting.com> -- FAQ on WWW: http://www.conte
/archives//html/Amps/2002-01/msg00193.html (6,931 bytes)

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