The Fisher 4400 FM Receiver
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
That is a possibility, you can verify by checking to see if there is DC across your speaker. Or see if you have DC on the speaker terminals with no speaker connected. Also please check both of the diodes and associated resistors in the bias network, these are famous for shorting/going out of tolerance and messing up the bias voltages... not good for the outputs.
Messages In This Thread
RE: The Fisher 4400 FM Receiver - by BrendaAnnD - 02-19-2014, 09:06 AM
Users browsing this thread: 5 Guest(s)
|
Recent Posts
|
B&K 1077B no video
|
Hello Tim,
I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ?
Sincerely Richardradiorich — 01:55 AM |
B&K 1077B no video
|
I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM |
RCA 15X
|
I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM |
B&K 1077B no video
|
Hello Tim,
I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!.
Sincerely...radiorich — 11:07 PM |
RCA 15X
|
Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM |
Philco 91 Schematic
|
Hi Dan,
I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM |
6TPZ and 5TPO Radio Help
|
I suspect it's been repaired before.
And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM |
B&K 1077B no video
|
Thanks Rich! I'll take a look and see what he has. I know there's more modern equipment to be had, but this one I know a...TV MAN — 09:11 PM |
B&K 1077B no video
|
Hello Tim,
Here is a link to restoration of one on Phil's old radios site !
Sincerely Richard
bk1077bradiorich — 09:01 PM |
6TPZ and 5TPO Radio Help
|
I'm a little befuddled on this one. Should X5 and X4 be tied together like this? It looks like someone added this at so...R3Sons — 07:33 PM |
Who's Online
|
There are currently no members online. |
|
![>](https://philcoradio.com/phorum/images/bootbb/asb/right_arrow.png)
|