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References: [ +from:vince.fedele@vsttech.com: 11 ]

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1. [AMPS] adding a second tube (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Mon, 11 Aug 1997 11:37:53 -0400; -- -- 8/10/97 from Vince Fedele: Hello Rich, Tom, Phl, et al: I have extensive notes in my engineering notebook Re> Changes made to improve the 77sx which I have had since 1988. It was purchased new; /archives//html/Amps/1997-08/msg00107.html (13,334 bytes)
2. [AMPS] Vacuum relay and HV Fault Protection (score: 1): Author: vince.fedele@vsttech.com (Vincent Fedele); Date: Fri, 02 May 1997 09:20:05 -0400; Ian: My understanding of defibrillators from the application point of view is that there are many similarities and differences. For example, believe it or not, the energy level (at the highest settin; /archives//html/Amps/1997-05/msg00004.html (14,443 bytes)
3. [AMPS] 4CX15000 Amp.???? (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Fri, 18 Apr 1997 17:07:37 -0400; C'mon Bob, put aside your badge for a moment. You forgot "power" as one of the key elements, along with skill, timing and antennas. Don't forget about other technology, such as packet interfaced to h; /archives//html/Amps/1997-04/msg00255.html (10,291 bytes)
4. [AMPS] Fault Protection Circuits (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Fri, 18 Apr 1997 17:33:19 -0400; Ampers: In 1987, Eimac published a 4-page technical brief on Fault Protection. It mentioned several references that were at that time out of print, and I am interested in finding them. The paper disc; /archives//html/Amps/1997-04/msg00256.html (8,139 bytes)
5. [AMPS] Single band amp construction query (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Tue, 22 Apr 1997 11:27:58 -0400; Gary: You didn't say which band?? But, with just a single band, the caps are less of an issue. Always use a vacuum for the C1, plate tune cap. This is because there are very high RF currents there, a; /archives//html/Amps/1997-04/msg00320.html (9,808 bytes)
6. [AMPS] Single band amp construction query (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Tue, 22 Apr 1997 15:20:01 -0400; Chad: You can not open a vacuum relay with voltage present at the contacts, as an internal arc will ionize metal off of the contacts in the process of opening same. The result is a conductive ionized; /archives//html/Amps/1997-04/msg00329.html (10,596 bytes)
7. [AMPS] Single band amp construction query (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Tue, 22 Apr 1997 16:22:52 -0400; Chad: The application booklet for Jennings vacuum relays notes several precautions to observe when using vacuum ralays to switch high DC voltages. <<The type intended for this application have coils; /archives//html/Amps/1997-04/msg00333.html (10,527 bytes)
8. [AMPS] Need Specs. on Jennings RF-3A-26S Relays (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Wed, 23 Apr 1997 14:23:37 -0400; Phil: Hope the following is helpful. Vince WA2PKE -- RF3A-26S (26.5Vdc Coil) -- One form-C contact (SPDT) Test Voltage (kV) 60Hz 10 Rated Operating Voltage (kV Peak): DC or 60 Hz 8 2.5Mhz 7 16Mhz 6 3; /archives//html/Amps/1997-04/msg00349.html (8,888 bytes)
9. [AMPS] Band Switch Heath SB-1000 (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Mon, 28 Apr 1997 19:09:39 -0400; Ian: Your sequencing is logically correct, and in fact is exactly how most commercial/military gear is designed. However, this is executed without ALC. Instead, an TX Inhibit signal is used. They are; /archives//html/Amps/1997-04/msg00456.html (11,122 bytes)
10. [AMPS] Alpha 77DX Bias Switching (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Wed, 26 Mar 1997 10:37:07 -0400; Re: [AMPS] Alpha 77DX Bias Switching Several comments on the pros and cons of the 77 EBS system have been included in recent discussions here on the Amps forum, and have provided interesting and info; /archives//html/Amps/1997-03/msg00244.html (12,270 bytes)
11. [AMPS] Alpha 77DX Bias Switching (score: 1): Author: Vince.Fedele@VSTTECH.COM (Vincent Fedele); Date: Wed, 26 Mar 1997 19:34:31 -0400; Hello Dick: I think we are saying the same thing here, which is that a noise gate is probably preferred to the EBS since noise causes the unwanted EBS switching--as both of us have described. I was n; /archives//html/Amps/1997-03/msg00255.html (13,973 bytes)

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