Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Today's progress so far: I have replaced all of the electrolytics in the power supply section of the receiver.
[Image: http://www.philcoradio.com/images/phorum/STA225_006.jpg]
[Image: http://www.philcoradio.com/images/phorum/STA225_007.jpg]
Notice how short those new Nichicon main filters are! Fortunately they are the same diameter as the originals, so they had no trouble fitting into the original can clamps.
Next up: To replace the output transistors.
--
Ron Ramirez
Ferdinand IN
Messages In This Thread
RE: Realistic STA-225 - by Ron Ramirez - 12-24-2016, 04:24 PM
Users browsing this thread: 2 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/collapse.png "[-]")
