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1. [Amps] GM3SEK Tetrode and Triode Boards - updates (score: 1): Author: "Ian White" <gm3sek@ifwtech.co.uk>; Date: Wed, 5 Jul 2017 08:39:00 +0100; It is very rare that the GM3SEK Triode Board and Tetrode Boards require any announcements or updates... but here are a few today. 1. We're Back! After some delays, the GM3SEK Triode Board and Tetrode; /archives//html/Amps/2017-07/msg00007.html (8,518 bytes)
2. Re: [Amps] GM3SEK Tetrode and Triode Boards - updates (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Wed, 5 Jul 2017 08:42:36 -0400; there is no direct replacement." Ian, Is that due to the 748's +30V input spec as a comparator? Tayda Electronics presently have an inventory of 127K devices for USD $1.00 ea. Tayda claims theirs ar; /archives//html/Amps/2017-07/msg00008.html (6,972 bytes)
3. Re: [Amps] GM3SEK Tetrode and Triode Boards - updates (score: 1): Author: "Ian White" <gm3sek@ifwtech.co.uk>; Date: Wed, 5 Jul 2017 18:57:27 +0100; Hi Paul There are several reasons for needing the 748 op-amp and no other: 1. The big one is the need for access to the on-chip gain/frequency compensation terminals. This greatly reduces the range o; /archives//html/Amps/2017-07/msg00016.html (9,534 bytes)

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