| To: | <amps@contesting.com> |
|---|---|
| Subject: | [Amps] 4CX250B/F |
| From: | g8gsq at qsl.net (Steve Thompson) |
| Date: | Fri Jun 20 08:22:26 2003 |
On Wednesday 18 June 2003 12:27, GGLL wrote: > Reading RCA manual I've seen that 4CX250B (6V heater) tube requires > no warm-up period, but 4CX250F (26 V heater) a 30 seconds period, why > the difference? There is no difference. The instructions for the 6V version are incorrect. Personally, I use at least 1min. warmup. Steve |
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