Posts: 7,323
Threads: 270
Joined: Dec 2009
City: Roslyn Pa
Hi Mike and welcome.
This might help you see what the differences are between the 2 speakers you are looking at and the one you are getting. The model 70 and it's other alliterations use the same speaker as your single 47 model 90. Also bear in mine that the resistance for the opt that you are quoting is the dc resistance not the ac load that is presented to the tube.
https://philcoradio.com/library/index.ph...-21-70-90/
GL de N3GTE
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got it!
Terry
Messages In This Thread
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-25-2023, 08:43 PM
Users browsing this thread: 2 Guest(s)
|
|
Recent Posts
|
|
Stromberg Carlson 1500 Squeal
|
| And life just keeps getting more complicated. By dconant.
Dittos'Jimradio — 08:01 AM |
|
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
|
| That looks a lot like an aircraft connector of some kind, even if it's a U.S.N power supply. I have a book somewhere abo...Arran — 02:56 AM |
|
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
|
| hello david,
I have a similar generator in my collection that features a cast iron, single-cylinder Briggs & Stratt...radiorich — 01:00 AM |
|
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 |
|
Who's Online
|
| There are currently no members online. |
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
