Having built and used my SSE with the large Edcor power and output transformers for KT88, 6L6, EL34 tubes I am
now ready to build a smaller version for tubes such as 6V6, 6F6, 6K6 and other low power tubes.
For this smaller version I am planning to get the Edcor XPWR009 -
550V (275-0-275) at 175mA center tapped, 6.3V at 4A and 5V at 3A.
Edcor GXSE15-8-5K opt's along with Edcor choke and aux cap.
With XPWR009 and a 5AR4 rectifier I estimate I'll have a B+ somewhere around 320 - 335 volts.
With the above in mind can someone suggest a range of 6 cathode resistor values that I can tune in with a rotary selector switch ?
now ready to build a smaller version for tubes such as 6V6, 6F6, 6K6 and other low power tubes.
For this smaller version I am planning to get the Edcor XPWR009 -
550V (275-0-275) at 175mA center tapped, 6.3V at 4A and 5V at 3A.
Edcor GXSE15-8-5K opt's along with Edcor choke and aux cap.
With XPWR009 and a 5AR4 rectifier I estimate I'll have a B+ somewhere around 320 - 335 volts.
With the above in mind can someone suggest a range of 6 cathode resistor values that I can tune in with a rotary selector switch ?
Thanks Zman01,
I knew about that page but forgot there were also simulations for 6V6 tubes.
I was thinking that only EL34, 6L6 and KT88 were listed.
I wonder if those simulations can be used for 6F6 and 6K6 tubes ?
Thanks for that info W5JAG.
Do you have any experience with 6EZ5, 6FW5 and 6W6 tubes ? Any suggestions for these ?
I also have some 6Y6 tubes and I know the max. voltage rating for these is 200V.
If I use a 5W4 or 5Y3 rectifier to get the B+ down to the 250V range and use a suitable
cathode resistor do you think this would be okay for the 6Y6 ?
6EZ5 - no. 6FW5 - no. 6W6 - yes.
The real limitation with 6W6, 6Y6, and 6U6 is the screen grid. I've used all of these triode strapped at around 220 volts and they worked fine. Start with a cathode resistance of 560 - 620 ohms.
If you search my username here and in the main forum, you'll find relevant posts. Tubelab also has many relevant posts on the subject.
Win W5JAG
Sent from my Windows 8 phone using Board Express
The real limitation with 6W6, 6Y6, and 6U6 is the screen grid. I've used all of these triode strapped at around 220 volts and they worked fine. Start with a cathode resistance of 560 - 620 ohms.
If you search my username here and in the main forum, you'll find relevant posts. Tubelab also has many relevant posts on the subject.
Win W5JAG
Sent from my Windows 8 phone using Board Express
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