|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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
PP Class A OPT Loading
Posted by PakProtector on March 18, 2012 at 12:21:37:
hey-Hey!!!,
After a bit of discussion yeilded the simplified answer is, 'each tube/phase sees a-a/2', I still want to know what happens when the simplifications are removed. Say for a pair of 6L6GC pentodes. B+ around 250 V, a-a load of ~5k and each tube idling near 100 mA. What is the load seen at each plate across the swing up and down of the signal?
With a pentode, plate resistance is high compared to the loading...make it infinite for discussion?
cheers,
Douglas