Re: SX-110 2nd IF Circuit Design
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It was tired eyes and a transcription error.? The 7H7 is the third IF. ? 73, ? Steve, KW4H ? My SX 42 has 6SK7, 6SG7 and 7H7. Clearly stamped into the metal chassis. Do you supposed one had tired eyes and thought he saw a C instead of a G?
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On 10/30/2022 12:48 PM, don Root wrote: ? Scott, and ?Steve and the gang: I think Steve clarified a mistake re the sx-110 , but he listed IF tubes for others ?and never said anything about my comment on the sx-42 . he listed?? ¡°SX-42 (1947-50) 6SK7, 6SG7¡±? ?my? ?1996 Dachis ?book and my ?Osterman? book says ?6SK7,? 6SC7, 7H7 I also said ¡°Wonder if we have the same printing¡¡± ? Now I wonder if ? my? ?1996 Dachis ?book and my ?Osterman[ second edition]? books ?are wrong ??about the 42 ? For the 62 you mentioned ?,Osterman ?lists the same IF tubes as it lists for the 42, [6SK7,? 6SC7, 7H7] and also says the A version seems to be the same except for the speaker impedance,, BUT Dachis says? 6SK7?6SG7?6SG7? I guess I must be off-track, and/or cant read these details so maybe somebody else can check these books? Don VA3DRL =======trimd
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