Need schematic Motorola 95L1
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Got this thing in yesterday. Looking it over tonight, it has some serious issues. For starters, it looks for all the world like at least two of the tube sockets (filament pin) are not connected to any voltage source. Funny thing is, it doesn't look like they ever were (see attached pic)
Posts: 7,294
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
You had me stumped for a second. I take it that It's a portable cause 3 and 4 are connected.
Terry
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Sorry, yes, a 5 tube portable. Note that pin 1 on two of the sockets has nothing connected to it, also reads open on my DMM. Don't see how this radio ever worked from the factory, since those two sockets are the RF amp and IF amp.
Posts: 2,128
Threads: 18
Joined: Oct 2008
City: Merrick, Long Island, NY
Look foward to newer posts. Looks like late 40's early 50's not even sure about that.
Posts: 1,114
Threads: 14
Joined: Feb 2013
City: Irvington, NY
On the 1U4 and 1R5, pin 1 is internally connected to pin 5, so no connection to 1 is needed if 5 is being used.
[Image: http://www.bunkerofdoom.com/tubes/syl43/.../1U4_1.gif]
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Ah... I had not even considered looking up the 1U4, I'm so used to having all those 1V miniatures using pins 1 and 7 for filament.
Still power supply issues, so still need the schematic if anyone knows where I can find one.
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Thanks to the pointer about the 1U4 internal connections, I got off of that wrong way path and found the power supply problem (was one section of a REPLACED three section filter cap). Turned out that the biggest PITA about this set was restringing the dial string. It LOOKS simple enough, but was refusing to move until I did a lot of very finicky tensioning. Radio works like a champ now.
Posts: 464
Threads: 31
Joined: Sep 2009
City: Lapeer
State, Province, Country: MI
Hi BrendaAnn,
Sorry, I'm stumped. There is no Motorola 95L1 in my collection, and I can't find a reference to one anywhere. Joe
Joe
Matthew 16:26 "For what does it profit a man if he gain the whole world, yet lose his own soul?"
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
I couldn't find any reference, either. Very strange. But I did figure out the problem and corrected it. Still wish I could find something on this thing, though.
Hmmm... I've just discovered something... I looked the radio up by name rather than model number, and there may have been a misprint on the label (not like I'VE ever done anything like that!). The radio is a Motorola Diplomat, which corresponds to model numbers 65L1 and 65L2 (the latter, I believe, being the 220V version. I've ordered a schematic from Steve.
Users browsing this thread: 2 Guest(s)
|
Recent Posts
|
6TPZ and 5TPO Radio Help
|
Quick progress report:
X7 is broken. Only one leg soldered, the other missing and the diode is cracked.
I've replaced...R3Sons — 05:05 PM |
6TPZ and 5TPO Radio Help
|
Oh...and you have electrolytic caps there.
All need to go and be replaced.morzh — 04:36 PM |
6TPZ and 5TPO Radio Help
|
Thanks, will do.R3Sons — 01:25 PM |
1930s Stewart-Warner Tombstone Radio need help identifying model number
|
UPDATE: I was able to pick up a signal generator on the cheap (amazingly enough) on feebay and I did an IF alignment fol...captainclock1988 — 09:53 AM |
Philco 91 Schematic
|
Hi Rod,
The resistor connects to pin 4 and the ungrounded side of block 9. From pin 9 of the RF tube to one side of ...dconant — 09:34 AM |
Just got a 49-1613 need to know...everything!
|
I just found your post. I have this exact same model, and have had it since 1985 when I was 15 years old! I performed a ...MuzzcoVW — 09:11 AM |
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 |
Who's Online
|
There are currently 10327 online users. [Complete List] » 4 Member(s) | 10323 Guest(s)
|
|
|
|