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Total 113 documents matching your query.

61. [Amps] GS-35B Input (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Wed, 17 Feb 2010 12:03:50 -0800
Just a thought/wondering .. why is it that a broad-band 1:1 torroid un-unun not used for the input of a single GS-35b instead of several C.L.C. networks ?? Is there not enough fly-wheel effect to kee
/archives//html/Amps/2010-02/msg00495.html (6,838 bytes)

62. Re: [Amps] GS-35B Input (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Wed, 17 Feb 2010 21:48:53 -0800
I was thinking of using one of those bi-ocular transformers that's found in many solid state transceivers .... but changed to 1:1 and basically an C L to ground and the other half of the 1:1 would be
/archives//html/Amps/2010-02/msg00511.html (9,287 bytes)

63. Re: [Amps] GS-35B Input (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Wed, 17 Feb 2010 22:34:27 -0800
Ok that didnt work so great .. but using a power combiner/splitter with 1100pF in the same setup did show a workable bandwidth and didnt go above a 1.5SWR .... looks like i might just use this config
/archives//html/Amps/2010-02/msg00513.html (11,057 bytes)

64. [Amps] Unknown amp (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Mon, 22 Feb 2010 06:34:21 -0800
Ok .. lets revisit this thing again ... with a new question ... http://www.flickr.com/photos/kc7noa/3261632257/ this is the input and im thinking that its a coaxial input ... and with that thought is
/archives//html/Amps/2010-02/msg00640.html (7,371 bytes)

65. Re: [Amps] Eimac bulletins now on http://w1rt.us/eimac/eimacxx.pdf (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Mon, 22 Feb 2010 18:40:47 -0800
I got all 12 with in 2 minutes .. no problems here ... Remember to replace the "XX" in the url with 01 through 12 !!!! Mike KC7NOA _________________________________________________________________ Yo
/archives//html/Amps/2010-02/msg00670.html (10,471 bytes)

66. [Amps] FW: GS35B tuned input (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Tue, 23 Feb 2010 20:01:50 -0800
Iv decided to leave my input as-is .. New question .. how hot normally does the Kp and P rings (heater - rated at 120Deg C = 248Deg F) get with 90cfm air?? Im a little high on voltage .... sitting at
/archives//html/Amps/2010-02/msg00708.html (11,575 bytes)

67. Re: [Amps] High pass filter / was GS35B tuned input (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Thu, 25 Feb 2010 06:31:12 -0800
Im working on a Yokagawa P9306UL, which is a striped down HL-2K a 2X 3-500Z tube amp .. over to using a GS-35b and space is some what an issue. Using a UHF/VHF suppression next to the tube (on the HV
/archives//html/Amps/2010-02/msg00740.html (9,161 bytes)

68. [Amps] Mangian wire (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Sun, 28 Feb 2010 14:16:42 -0800
Ok .. do you really need the Mangeian Wire from the B- of the Filter board to the shunted amp meter?? I have my amp up and running with a GS-35b now and im sure that my bias isnt working right .... m
/archives//html/Amps/2010-02/msg00762.html (7,961 bytes)

69. Re: [Amps] Manganin wire (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Mon, 1 Mar 2010 06:24:28 -0800
I already knew about the issues given forth about using a center taped heater transformer with bias voltage feed on the center tap- and its a minor issue. Im trying to divide and conquer my metering
/archives//html/Amps/2010-03/msg00001.html (9,673 bytes)

70. Re: [Amps] Manganin wire (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Mon, 1 Mar 2010 22:24:22 -0800
Ok .. i feel silly now .. i found the problem ... found a diode not in the schematic next to a opamp that was/is supposed to be for external metering that was shorted to ground. (no i was still using
/archives//html/Amps/2010-03/msg00043.html (8,517 bytes)

71. Re: [Amps] MLA-2500 retrofit. (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Tue, 2 Mar 2010 21:25:32 -0800
This looks fairly straight forward ... http://www.nd2x.net/w4emf-MLA.html I just did/doing a GS-35B in place of a pair of 3-500z's ... Mike KC7NOA ____________________________________________________
/archives//html/Amps/2010-03/msg00055.html (7,562 bytes)

72. [Amps] GS35b Bias (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Mon, 8 Mar 2010 12:40:15 -0800
Has any one used a LM (like a LM317t .. i have a bunch of them) regulator with a NPN pass transistor , rather than use a tl431 and a PNP pass transistor ... ?? Mike KC7NOA ___________________________
/archives//html/Amps/2010-03/msg00135.html (7,140 bytes)

73. Re: [Amps] GS35b Bias (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Mon, 8 Mar 2010 12:47:23 -0800
Sorry .. its for bias of a GS-35B ... the emitter of the NPN is sunk (grounded) during Tx ... i guess i would need to copy/paste a section of my amps schematic to help describe this problem/query. Mi
/archives//html/Amps/2010-03/msg00136.html (7,632 bytes)

74. Re: [Amps] GS35b Bias (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Mon, 8 Mar 2010 15:56:56 -0800
thats right ... my amp does not have a PNP, only NPN trans good to 1200v@10A .... i want to replace the minum of parts ... You dont see an improvement ?? I was leaning towards a variable Bias with a
/archives//html/Amps/2010-03/msg00144.html (8,542 bytes)

75. [Amps] FW: GS35b Bias (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Tue, 9 Mar 2010 15:02:13 -0800
Yea, G3SEK uses a TL431 and a PNP pass transistor .... Im just trying to get by on whats already there ... Does any one else have comments about Noise from the LM317t compared to the TL431 ??? Mike K
/archives//html/Amps/2010-03/msg00148.html (10,212 bytes)

76. Re: [Amps] FW: GS35b Bias (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Tue, 9 Mar 2010 17:07:52 -0800
yea the w7zt ... uses the tl431 and a PNP pass ... _________________________________________________________________ Hotmail: Free, trusted and rich email service. http://clk.atdmt.com/GBL/go/2014692
/archives//html/Amps/2010-03/msg00151.html (12,578 bytes)

77. [Amps] yokagawa pl93 (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Fri, 19 Mar 2010 06:59:06 -0700
My Yokogawa P9306UL (THP HL-2K with missing parts) with GS35-b GS35b installed. Just sending this through the list for any one that finds one of these amps and what could be done. Hope the pics of th
/archives//html/Amps/2010-03/msg00368.html (6,755 bytes)

78. [Amps] Vaporized band switch contacts (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Tue, 6 Apr 2010 06:26:29 -0700
Has any one devised a replacement scheme besides replacing the ceramic wafer when the band switch contacts get vaporized ??? I think the TL922 and THP HL-2K use the same style - type wafers. Mike KC7
/archives//html/Amps/2010-04/msg00149.html (7,464 bytes)

79. Re: [Amps] Vaporized band switch contacts (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Tue, 6 Apr 2010 10:54:51 -0700
Yes the wafer is fine. These are what im going to need. SOOoooo ... no one has em new?? http://home.arcor.de/dk9ip/repair/sb220/sb220bandswitch_18.html Mike KC7NOA ___________________________________
/archives//html/Amps/2010-04/msg00158.html (9,042 bytes)

80. Re: [Amps] Vaporized band switch contacts (score: 1)
Author: MIKE DURKIN <patriot121@msn.com>
Date: Wed, 7 Apr 2010 06:37:15 -0700
I used a sonicare toothbrush to clean the tank on a FT-101ZD, i would think that some comet and the toothbrush should do a good job of cleaning it up. Mike KC7NOA ____________________________________
/archives//html/Amps/2010-04/msg00190.html (10,060 bytes)

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