Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

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



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
under chassis parts locator diagram for 1938 Zenith 9s262
Has anyone gone to the trouble of creating an under chassis parts locator image?  Yes, I can identify components by foll...bobloney — 08:57 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Try looking at this site the book mark is for a old generator that I was given. David    https://radionerds.com/index.ph...David — 08:36 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Hello Everyone, I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM

[-]
Who's Online
There are currently 2196 online users. [Complete List]
» 1 Member(s) | 2195 Guest(s)
Avatar

>