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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+Parasitic\s+suppressors\/another\s+question\,\s*$/: 47 ]

Total 47 documents matching your query.

21. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: jono@enteract.com (Jon Ogden)
Date: Fri, 9 Apr 99 14:19:25 -0500
The "typical" anode resonance of a 4-1000A is around 80 MHz. However, with my current design that uses NO suppressor resistors in the anode, I cannot find a resonant dip on my GDO in that region or
/archives//html/Amps/1999-04/msg00191.html (13,513 bytes)

22. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: jono@enteract.com (Jon Ogden)
Date: Fri, 9 Apr 99 14:26:31 -0500
How long will you hold to the view that the resistors where of proper resistance value before the oscillation took place when you have no proof? You are making an assumption that the resistors were
/archives//html/Amps/1999-04/msg00192.html (10,200 bytes)

23. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: nj4f@erols.com (Steve Bookout)
Date: Fri, 09 Apr 1999 15:35:56 -0400
Hello All, I currently have a home brew amp which I need to finish which I can make oscillate at the drop of a pin. Would it be of interest to anyone for me to put new resistors in the anode suppress
/archives//html/Amps/1999-04/msg00193.html (11,629 bytes)

24. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: warrenw@pentek.com (Warren J. Walsh)
Date: Fri, 09 Apr 1999 15:42:05 -0400
I am not sure if this has ever been posted to the reflector, but I found this interesting Web site that provides a little more information concerning the testing done by N7WS, so I thought I'd pass i
/archives//html/Amps/1999-04/msg00194.html (10,091 bytes)

25. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 9 Apr 1999 16:54:47 -0400
AMEN Peter! I still have a 4-1000A here that will draw 400ma " on demand". Ive used it several times in a show and tell. The glow really gets attention. BTW, the first year of (1954) Ford/Mercury OHV
/archives//html/Amps/1999-04/msg00197.html (11,175 bytes)

26. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: w4eto@rainbow.rmii.com (Richard W. Ehrhorn)
Date: Fri, 9 Apr 1999 15:51:48 -0600
? Adjusting C-tune makes little difference in the anode resonance since C-tune is effectively in series with C-anode, which is much smaller. [Richard W. Ehrhorn] <<< A sweeping generalization which i
/archives//html/Amps/1999-04/msg00200.html (11,107 bytes)

27. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 9 Apr 1999 20:54:09 -0400
On Fri, 09 Apr 1999 15:42:05 -0400 "Warren J. Walsh" <warrenw@pentek.com> writes: It has Warren but Rich seems to have his own spin to it. 73 Carl KM1H _______________________________________________
/archives//html/Amps/1999-04/msg00202.html (11,261 bytes)

28. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 9 Apr 1999 20:51:59 -0400
Good point Jon but dont expect a straight answer. In the SB-220 case remember when the amp was designed. Long before the 1500W output rule. When run BY THE MANUAL it will not overheat the suppressors
/archives//html/Amps/1999-04/msg00203.html (11,407 bytes)

29. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 9 Apr 1999 20:36:27 -0400
SNIPPED On 10M which comes first, the cart or the horse? It was agreed by most, (sorry if you were not invited,) that many common suppressors do run hot on 10M and extended use will result in an incr
/archives//html/Amps/1999-04/msg00204.html (11,585 bytes)

30. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sat, 10 Apr 1999 01:55:48 -0700
? _______________ Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: am
/archives//html/Amps/1999-04/msg00207.html (10,028 bytes)

31. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sat, 10 Apr 1999 01:55:45 -0700
? excellent ? Does it have a history of damaging suppressor resistors, Steve? Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html
/archives//html/Amps/1999-04/msg00208.html (12,617 bytes)

32. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sat, 10 Apr 1999 01:55:38 -0700
? Surely. The 8973 has 160pF of C-anode. At 29.5MHz, C-tune would probably be around 100pF. However, in a SB-220 the measured anode resonant freq. changes little between 80m and 10m operation. Rich.
/archives//html/Amps/1999-04/msg00209.html (11,069 bytes)

33. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sat, 10 Apr 1999 01:55:47 -0700
? I bought new +/- 5% resistors at the radio parts emporium. The resistors were within spec. Approx. Ten minutes later they were toasted during operation on 40m despite the fact that each was connec
/archives//html/Amps/1999-04/msg00210.html (10,440 bytes)

34. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sat, 10 Apr 1999 02:37:57 -0700
? I did not state that the arcs occurred during 10m operation. I stated that the arcs occurred at the open 10m contacts. The photo of the toasted bandswitch in the QST article "Parasitics Revisited"
/archives//html/Amps/1999-04/msg00212.html (11,151 bytes)

35. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: realex@flash.net (bob alexander)
Date: Sat, 10 Apr 1999 19:15:39 -0500
-- I first worked on an SB220 as a Heathkit tech in the mid 70's. Since then I've owned, serviced, modified or for some reason had my hands inside 20 or 30 SB220s (not the 200 Rich has tested). In th
/archives//html/Amps/1999-04/msg00213.html (10,477 bytes)

36. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Sat, 10 Apr 1999 09:53:10 -0400
can be directly attributed to the operator rotating the band switch instead of the load control while tuning up. The physical layout of the tune, load and bandswitch controls makes it easy to turn th
/archives//html/Amps/1999-04/msg00215.html (10,912 bytes)

37. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sat, 10 Apr 1999 07:07:36 -0700
? bingo ? I did not state how many I worked on. My guess is fewer than ten. ? When an amplifier's tank is out of resonance are the tank voltages maximal or minimal? Does it make sense that rotating
/archives//html/Amps/1999-04/msg00216.html (11,456 bytes)

38. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: measures@vc.net (Rich Measures)
Date: Sat, 10 Apr 1999 07:07:37 -0700
Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contest
/archives//html/Amps/1999-04/msg00217.html (11,547 bytes)

39. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Sat, 10 Apr 1999 11:37:53 -0400
On Sat, 10 Apr 1999 19:15:39 -0500 bob alexander <realex@flash.net> writes: (not the 200 Rich has tested). I believe I mentioned that, not Rich. Most of the 220's that I convert to 6M arrive in somew
/archives//html/Amps/1999-04/msg00219.html (10,808 bytes)

40. [AMPS] Parasitic suppressors/another question, (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Sat, 10 Apr 1999 10:47:03 -0400
On Sat, 10 Apr 1999 02:37:57 -0700 Rich Measures <measures@vc.net> writes: Was this one of the mailed in switches? How can you assume the prior condx of any contact before the final failure? There ar
/archives//html/Amps/1999-04/msg00221.html (11,784 bytes)


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