|
Tubes Asylum Questions about tubes and gear that glows. FAQ |
For Sale Ads |
Use this form to submit comments directly to the Asylum moderators for this forum. We're particularly interested in truly outstanding posts that might be added to our FAQs.You may also use this form to provide feedback or to call attention to messages that may be in violation of our content rules.
Original Message
RE: Follow-Up Questions
Posted by Chip647 on April 26, 2017 at 13:28:37:
High-rel, high altitude (60000ft) version of 1641, full wave rectifier. 2.3KV PIV, 275mA average current. Designed and manufactured by United Electronics.
Look Up 1641
http://tdsl.duncanamps.com/pdf/vm408.pdf
It has a 3 amp indirect heater versus a 2 amp filament in the 5R4