Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
After obtaining a new power transformer for my Baltika, I find that it really likes the new transformer, it doesn't even get significantly warm to the touch.
The radio itself works pretty well now, except for one minor problem: The MW band does not work. The Local Oscillator is dead. If I insert a carrier of the proper frequency I can receive stations on it, but without that, nada.
There is a coil on the bottom side of the chassis that looks as though to be for the MW band, and it has one wire that is broken off of somewhere. I cannot locate where this goes. I've tried touching it to various points close enough for it to reach, but still nothing.
I have what seems to be the only schematic available for the set, downloaded from radiomuseum.org, but it's of little help, since it shows no pictorials of where parts are located.
Anyone (Mike, Peter?) able to lend a hand with this issue?
Thanks in advance for your time.
Posts: 16,188
Threads: 562
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
Brenda
I will alert Peter, myself I am not of much help as I have not dealt with these much; Peter might've.
Another thing - going to Russian websites of radio enthusiasts; they might have something. Of course it is anyone's guess if they 1) speak English, 2) especially keen on helping an American. But they might.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 16,188
Threads: 562
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
I wrote to Pete.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 607
Threads: 21
Joined: Nov 2014
City: Svalyava
State, Province, Country: UkraineTranskarpatia
Hello Brеndа. There are three main models - Baltic RZ-1, Baltic 52 and Baltic 54. I would like to clarify the model of your Baltic, because they differ significantly in scheme. Please let me know what model you have and I will send you a diagram and take a photo of the chassis.
Old Tube Radio Online Museum / Музей ретро радіо
https://www.youtube.com/user/RadioSvit?d...lymer=true
Sincerely Peter
З повагою Петро
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Hey, I got nothing at all against Russians. Not a Putin fan, but then I wasn't a 45 fan, either. ![Icon_smile Icon_smile](https://philcoradio.com/phorum/images/smilies/icon_smile.gif) But the people I got no issues with. To quote a 90's rock band.. "people are people."
Have a good one!
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Peter,
Thanks. I believe this to be a Baltika 54, but I'll try to find the back cover later today and make sure.
I do know it's the model with the wood cabinet, four bands (LW,MW,SW1,SW2) and a phono input. The schematic I found on radiomuseum seems to be close, at least in the power supply, though the schematic shows 4 dial lamps, where my radio has only 2.
Posts: 16,188
Threads: 562
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
>>But the people I got no issues with.
They might have issues with you :-) Right now, let's just say....well, not to get political, it's a warning, many people over there are not exactly very friendly to anyone from over here.
Maybe one day that will be over. (I might not live to see it but one could hope ![Icon_lol Icon_lol](https://philcoradio.com/phorum/images/smilies/icon_lol.gif) )
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 607
Threads: 21
Joined: Nov 2014
City: Svalyava
State, Province, Country: UkraineTranskarpatia
OK . I am sending you all three Baltic models.
Baltic RZ-1 . 1950
Baltic 52. 1952
Baltic 54.
The main difference between the Baltic RZ-1 and the other two models is that it has only 6 radio tube.Models Baltika 52 and Baltika 54 have 7 radio tubes each
And the Baltika 54 differs from the other two by its permanent magnet speaker, instead of the combined magnetizing speaker as in the two earlier models. The most popular and popular was the Baltika 52, the Baltika RZ-1 is a rather rare model, and the Baltika 54 is very rare.
Old Tube Radio Online Museum / Музей ретро радіо
https://www.youtube.com/user/RadioSvit?d...lymer=true
Sincerely Peter
З повагою Петро
Posts: 16,188
Threads: 562
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
Peter
I think Brenda also asked about the pictures of where the coils are located. Do you have the assembly drawings?
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Posts: 16,188
Threads: 562
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
Brenda
The second photo is grainy, but if my perception is correct, it is a low-turn coil with fairly thick wire.
Worst case, would you think you are able to rewind that thing?
PS. You are first American who call them tubes "lamps". I though that was us Russkies who do that ![Icon_lol Icon_lol](https://philcoradio.com/phorum/images/smilies/icon_lol.gif)
Or are you trying to get in the Russian groove with Russian radios and Russians being the consultants?
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 1,072
Threads: 43
Joined: Feb 2015
City: Roseville, MN
Brenda,
It looks like the coils in the schematic labeled L10 through L13 are the oscillator coils for the four bands. The band switches on either side select one of the coils to work with the tuning cap C3 to get the correct range of frequencies. Each of the four coils has a tap, so there are three wires coming from each. One end of each coil goes to the switch on the right through a capacitor. If you can identify which cap is associated with your problem coil then you can use that to identify the wiring for the coil. Hope this helps
Posts: 607
Threads: 21
Joined: Nov 2014
City: Svalyava
State, Province, Country: UkraineTranskarpatia
Old Tube Radio Online Museum / Музей ретро радіо
https://www.youtube.com/user/RadioSvit?d...lymer=true
Sincerely Peter
З повагою Петро
(This post was last modified: 03-31-2021, 02:52 PM by RadioSvit.)
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Peter,
Thank you. These are helpful. I figured out where the broken wire went, and added a short extension to it so I could reconnect it.
However, that did not help, because as you pointed out, that coil bank is for the antenna input. My local oscillator is still dead for MW.
I note by visual inspection that the coil on the lower right of your last photo is the MW local oscillator coil. I checked the coil itself with a meter and it seems to have good continuity. Can you please point out the MW local oscillator section in the Baltika 52 schematic? I'm having problems tracing the schematic around the band switch, and it would help a lot. I'm so close to having this radio in good working order, I don't want to give up now.
Posts: 16,188
Threads: 562
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
Good resolution.
I see the dead spiders.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
The list of my radio & TV collection!
|
Hello Peter,
Thank you for posting that !!
Sincerely Richardradiorich — 09:40 AM |
Eico 232 VTVM Schematic
|
It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is the...RodB — 05:50 PM |
Eico 232 VTVM Schematic
|
Try BAMA for a schematic.
Looks like a replacement power source for the D battery has been installed. The tube may be...Chas — 04:51 PM |
Eico 232 VTVM Schematic
|
Is that a battery holder?morzh — 04:43 PM |
Eico 232 VTVM Schematic
|
A friend gave me this Eico 232 VTVM and I'm having trouble locating the schematic for it. This one seems to be a later v...RodB — 04:17 PM |
Var resistor id
|
Considering what it is in series with, I doubt there should be any power requirements. Of course, we should
know wher...morzh — 03:23 PM |
Var resistor id
|
Trim pot, about 1/2 watt part of focus divider. As stated 2k ohms.
This appears to be a rusty chassis, resolder all ...Chas — 03:19 PM |
Var resistor id
|
Its a Sylvania 400 oscilloscope. here is a clip of r-100. Would be nice to know the current required. Not listed in part...Martinj — 02:10 PM |
The list of my radio & TV collection!
|
Thanks Richard. I hope you enjoy it.
Here I have created an English section on the history of radio with videos in Engl...RadioSvit — 10:23 AM |
The list of my radio & TV collection!
|
Hello RadioSvit,
first all happy new year !
I will watch your new videos this week.
Sincerely Richardradiorich — 09:19 AM |
Who's Online
|
There are currently 10465 online users. [Complete List] » 1 Member(s) | 10464 Guest(s)
|
|
|
![>](https://philcoradio.com/phorum/images/bootbb/asb/right_arrow.png)
|