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141. R: [AMPS] RF Choke Forms (score: 1): Author: measures@vcnet.com (measures); Date: Sat, 15 Jan 2000 10:51:03 -0700; As I understand it, Teflon does not combust. It sublimates at high temperatures. cheers - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submiss; /archives//html/Amps/2000-01/msg00330.html (8,662 bytes)
142. R: [AMPS] RF Choke Forms (score: 1): Author: measures@vcnet.com (measures); Date: Sat, 15 Jan 2000 10:51:01 -0700; At Raytheon, we had a lathe operator drop dead while turning down a piece of Teflon. later, Larry - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.ht; /archives//html/Amps/2000-01/msg00331.html (8,462 bytes)
143. [AMPS] Alert-- ptfe does NOT give phosgene (score: 1): Author: measures@vcnet.com (measures); Date: Sat, 15 Jan 2000 12:02:52 -0700; thanks, Bill. The info on Teflon producing phosgene during sublimation came from a handout at American Plastics Co in Camarillo, CA. - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: h; /archives//html/Amps/2000-01/msg00335.html (7,918 bytes)
144. R: [AMPS] Watt meters and PEP (score: 1): Author: measures@vcnet.com (measures); Date: Sat, 15 Jan 2000 16:56:15 -0700; . hardly a good guess. I worked in calibration laboratories for a total of roughly 10 years. I repaired and calibrated oscilloscopes. I do not need to guess how oscilloscopes are calibrated. cheers,; /archives//html/Amps/2000-01/msg00344.html (9,173 bytes)
145. [AMPS] Re: RF choke forms (score: 1): Author: measures@vcnet.com (measures); Date: Sat, 15 Jan 2000 16:56:16 -0700; ? an 8973, no doubt. My guess is that he's using water-cooled vac. variables and a water-cooled tank L. . . ? Indeed, Roy High temperature, motor rewinding wire is rated at 200 degrees. A twisted pa; /archives//html/Amps/2000-01/msg00345.html (7,949 bytes)
146. R: [AMPS] RF Choke Forms (score: 1): Author: measures@vcnet.com (measures); Date: Sat, 15 Jan 2000 21:03:30 -0700; ? Agreed. According to the Ventura County Coroner's Medical Examiner, he died from breathing some flourine compound. According to other machine shop employees, he had been turning down a large numbe; /archives//html/Amps/2000-01/msg00350.html (8,950 bytes)
147. [AMPS] Alert-- ptfe does NOT give phosgene (score: 1): Author: measures@vcnet.com (measures); Date: Sat, 15 Jan 2000 21:08:26 -0700; thanks for the info, Dave - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUES; /archives//html/Amps/2000-01/msg00351.html (9,488 bytes)
148. R: [AMPS] RF Choke Forms (score: 1): Author: measures@vcnet.com (measures); Date: Sun, 16 Jan 2000 05:44:22 -0700; tnx for chemistry lesson, Ian. Does HF plus water equal hydroflouric acid? - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@co; /archives//html/Amps/2000-01/msg00353.html (10,090 bytes)
149. R: [AMPS] Watt meters and PEP (score: 1): Author: measures@vcnet.com (measures); Date: Sun, 16 Jan 2000 06:47:24 -0700; To do so would foolishly destroy the jolly guessing game. cheers - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.c; /archives//html/Amps/2000-01/msg00355.html (8,519 bytes)
150. R: [AMPS] RF Choke Forms (score: 1): Author: measures@vcnet.com (measures); Date: Sun, 16 Jan 2000 08:50:02 -0700; Thanks. As I understand it, hydroflouric acid contact with the skin has killed some IC workers over the years - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.co; /archives//html/Amps/2000-01/msg00357.html (8,472 bytes)
151. [AMPS] snapping load SB-220 capacitors (score: 1): Author: measures@vcnet.com (measures); Date: Sun, 16 Jan 2000 15:49:36 -0700; am aware of a change in the Tune-C spacing but not Load - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Admini; /archives//html/Amps/2000-01/msg00366.html (7,590 bytes)
152. [AMPS] snapping load SB-220 capacitors (score: 1): Author: measures@vcnet.com (measures); Date: Sun, 16 Jan 2000 15:49:37 -0700; I am aware of a change in Tune-C spacing, but not Load-C spacing. - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.; /archives//html/Amps/2000-01/msg00367.html (7,574 bytes)
153. [AMPS] Caps on Dentron ML-2500 (score: 1): Author: measures@vcnet.com (measures); Date: Tue, 18 Jan 2000 00:27:38 -0700; I replace anything that has more than 250uA of leakeage at the rated V at room temp. . I replace anything with white deposits around the safety vent. Mouser, Digikey. I would go for the extra cost o; /archives//html/Amps/2000-01/msg00388.html (8,801 bytes)
154. SV: [AMPS] SB-220 conundrum (score: 1): Author: measures@vcnet.com (measures); Date: Wed, 19 Jan 2000 08:09:24 -0700; There are, in the 88MHz range. Direct-grounding the grid makes little change in the resonance. The grid RFC is essentially bypassed at the parasitic freq. of c. 110MHz by the (3) 200pF grid capacito; /archives//html/Amps/2000-01/msg00424.html (10,029 bytes)
155. [AMPS] broadband L at output (score: 1): Author: measures@vcnet.com (measures); Date: Wed, 19 Jan 2000 16:37:08 -0700; ? spread liberally around roses in early spring to improve blooms. cheers, Phil - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: am; /archives//html/Amps/2000-01/msg00431.html (8,823 bytes)
156. [AMPS] SB-220 conundrum (score: 1): Author: measures@vcnet.com (measures); Date: Wed, 19 Jan 2000 16:37:06 -0700; I can not see how this stability test would work at frequencies higher than HF. . To start the most destructive type of parasite (intermittent vhf push-push) , a rapid change in anode current is nee; /archives//html/Amps/2000-01/msg00432.html (8,706 bytes)
157. [AMPS] parts (score: 1): Author: measures@vcnet.com (measures); Date: Fri, 21 Jan 2000 03:30:15 -0700; Cardwell-Multronics cheers - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUE; /archives//html/Amps/2000-01/msg00452.html (7,431 bytes)
158. SV: SV: [AMPS] SB-220 conundrum (score: 1): Author: measures@vcnet.com (measures); Date: Fri, 21 Jan 2000 07:37:50 -0700; When the 110v PS diode shorts, the filter C looks pretty much like a dead short. I would like to see a high-pot test of the grid/filament withstanding potentials. Indeed, Hans - Rich..., 805.386.373; /archives//html/Amps/2000-01/msg00458.html (12,780 bytes)
159. SV: SV: SV: [AMPS] SB-220 conundrum (score: 1): Author: measures@vcnet.com (measures); Date: Fri, 21 Jan 2000 08:08:15 -0700; Parasites can usually not be found without a spectrum analyzer coupled loosely to the anode-resonance. When one sends hs dits, damped ringing is observed at the anode's vhf resonance. The best solut; /archives//html/Amps/2000-01/msg00460.html (8,604 bytes)
160. [AMPS] Re: 4 to 1 un-un at the tank output... (score: 1): Author: measures@vcnet.com (measures); Date: Fri, 21 Jan 2000 09:28:02 -0700; For this application, Type 61 ferrite is rated by the manufacturer at 10MHz max. Using type 61 (mu=c.125) material at 14MHz, sinewave distortion can easily be seen on an oscilloscope. Type 43 ferrit; /archives//html/Amps/2000-01/msg00465.html (7,606 bytes)

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