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Resistors used in Model 20
#14

Thanx for all of the advice, folks. I did, in fact, recap the big can on my own 20 a few years ago; it was exactly as you said. I had to wait for Ms. Fixr to be gone for the day before using the oven to gut the can. She would not be happy with me putting radio parts in the oven, or even the kitchen (or even the house). Since my "customer" is not looking for accurate restoration, I will just cut the wires inside the cans and hang them on the chassis side. I DO hope that the original resistors are good, as the chassis is totally unmolested.

As for $100.00 71As, I will sell to anyone for $50 (only kidding). They actually sell for about $15 - $20 on ePay----Wait!! What the Heck!!!
2 for about $15-$20, but a bunch for between $35 and $70 apiece, and they don't seem to care if they are globes or STs, and more than $200 for a trio of Arcturus Blue 71As. No bids on any though, so maybe the price IS going up, but I don't know why.

I have a schematic for a DIY 71A SE Amp and there are several on the internet. There seems to be a following for "Single Ended" amps, especially those using the Western Electric 300B. There are some on the internet that claim that if you have a very efficient speaker, that 71As, even at 0.7W (700mW) sound "as sweet as a 300B" and nicer than a 45 or 2A3. In fact there is a circuit with switches to select a 300B vs a 71A as the installed output tube. Since I don't have the ears or money to tell the difference, I am not exactly running out to build one of these tomorrow.

"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
"Let us begin to do good"- St. Francis

Best Regards, 

MrFixr55


Messages In This Thread
Resistors used in Model 20 - by MrFixr55 - 09-26-2023, 10:18 PM
RE: Resistors used in Model 20 - by morzh - 09-26-2023, 11:59 PM
RE: Resistors used in Model 20 - by radiorich - 09-27-2023, 08:06 AM
RE: Resistors used in Model 20 - by MrFixr55 - 09-27-2023, 10:10 AM
RE: Resistors used in Model 20 - by morzh - 09-27-2023, 10:36 AM
RE: Resistors used in Model 20 - by Arran - 09-27-2023, 06:11 PM
RE: Resistors used in Model 20 - by morzh - 09-27-2023, 06:54 PM
RE: Resistors used in Model 20 - by Ron Ramirez - 09-27-2023, 07:20 PM
RE: Resistors used in Model 20 - by radiorich - 09-28-2023, 08:36 AM
RE: Resistors used in Model 20 - by morzh - 09-28-2023, 09:02 AM
RE: Resistors used in Model 20 - by GarySP - 09-28-2023, 02:19 PM
RE: Resistors used in Model 20 - by Ron Ramirez - 09-28-2023, 02:42 PM
RE: Resistors used in Model 20 - by morzh - 09-28-2023, 03:18 PM
RE: Resistors used in Model 20 - by MrFixr55 - 09-28-2023, 05:37 PM
RE: Resistors used in Model 20 - by morzh - 09-28-2023, 08:25 PM
RE: Resistors used in Model 20 - by MrFixr55 - 10-01-2023, 08:59 AM
RE: Resistors used in Model 20 - by Arran - 10-01-2023, 04:37 PM



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