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Total 5 documents matching your query.

1. [Amps] AL811H (score: 1): Author: snichols@mvosprey.com (Scott Nichols); Date: Sat, 18 May 2002 13:33:43 -0300; I just replaced all 4 tubes in my Ameritron AL 811H amp...When I turn it on, the Plate Current (Ip) goes to 75 mA, and the Grid Current meter pins itself fully left (less than 0 mA)...The HV is OK at; /archives//html/Amps/2002-05/msg00293.html (6,821 bytes)
2. [Amps] AL811H (score: 1): Author: 2@mail.vcnet.com (Richard); Date: Sat, 18 May 2002 12:30:47 -0700; New tubes often have more gain than old tubes. More gain is good if one is trying to build an oscillator. To make it oscillate better, remove the VHF suppressors. Does it have Rauchian "neutralizati; /archives//html/Amps/2002-05/msg00297.html (7,122 bytes)
3. [Amps] AL811H (score: 1): Author: W4EF@dellroy.com (Michael Tope); Date: Sat, 18 May 2002 14:57:39 -0700; Scott, Its sounds like one of your new tubes is gassy giving rise to leakage current from plate to grid. Try rotating out the new tubes one at a time until you find the culprit. Good luck! 73 de Mike; /archives//html/Amps/2002-05/msg00299.html (7,682 bytes)
4. [Amps] AL811H (score: 1): Author: W4EF@dellroy.com (Michael Tope); Date: Sat, 18 May 2002 13:14:43 -0700; Scott, Its sounds like one of your new tubes is gassy giving rise to leakage current from plate to grid. Try pulling out the new tubes one at a time until you find the culprit. Good luck! 73 de Mike,; /archives//html/Amps/2002-05/msg00300.html (7,641 bytes)
5. [Amps] AL811H (score: 1): Author: Mike Sawyer" <kc4slk@csrlink.net (Mike Sawyer); Date: Sun, 19 May 2002 06:11:04 -0400; Scott, Verify that all of the tubes are 'located' properly in their socket. I seem to remember you can be out of sequence with regards to your pin location on 811's pending the type of socket they a; /archives//html/Amps/2002-05/msg00303.html (7,297 bytes)

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