Posts: 553
Threads: 89
Joined: Jun 2022
City: Marion
State, Province, Country: NY
Hello
The volume on my 38-2 seems low. I need to turn it up about half way to get normal volume. The data sheet for the 6F6 tube using PP Class AB (Pentode) Fixed Bias shows max 250 volts for the screen, 375 max for the plate and -16 min for the grid. My plates are 220 volts, screens 230 volts and grids -13.5 volts. Is the grid voltage too high? Looking at the schematic I can see why the screens are higher but should they be? Schematic https://philcoradio.com/library/download...l.%202.pdf
Thank you,
Dan
Messages In This Thread
Philco 38-2 Low Volume - by dconant - 11-09-2024, 02:27 PM
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
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 |
|
54C Complete Teardown/Rebuild
|
| Hello roy,
here is a link to the schematic .
Sincerely Richardradiorich — 11:54 PM |
|
54C Complete Teardown/Rebuild
|
| Richard,
The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM |
|
Preliminary work on wife's Silvertone 2014
|
| Did an alignment today which was interesting. IF alignment went great, almost all was already spot-on. Adjusting on th...glyphmon — 11:35 PM |
|
Who's Online
|
There are currently 1911 online users. [Complete List]
» 1 Member(s) | 1910 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
