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120V to 240V internally
120V to 240V internally
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Old 8th December 2017, 09:02 AM   #21
AndrewT is offline AndrewT  Scotland
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Join Date: Jul 2004
Location: Scottish Borders
Originally Posted by armarra1 View Post
So glad to hear you say that but puzzled as to why.

there are primary pins identified by

6 5 and 3.

5 says neutral on the board.
3 says live on the board.

the spare is 6 and says nothing.

3-5 is 35.6 ohms. 110volt power plug connected across 3 and 5.
3-6 is 35.6 ohms.
5-6 is 1 ohm.

also my multimeter leads say 1 ohm when I short them together.
I have to admit this does not make sense to me.

Have you built your MBT yet?

Do you have, or can borrow, a 230:115Vac transformer?
regards Andrew T.
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Old 8th December 2017, 09:18 AM   #22
scottjoplin is offline scottjoplin  Wales
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Location: Penrhyndeudraeth
What is the model? Can you find a schematic? As JMFahey says, please copy what is says in the manual. Also, check your meter is working correctly and the measurements across the primary wires
Woofer Assisted Wideband is the New Testament renounce the anachronistic acronym FAST
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Old 8th December 2017, 07:45 PM   #23
PRR is offline PRR  United States
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Location: Maine USA
Originally Posted by armarra1 View Post
...my caution and protracted enquiries is warranted......
Yes, but --- you have given NO CLUE what "USA cassette deck" this is. No brand, no model number, and no copies of whatever images and instructions you have.

Even knowing the BRAND might be helpful. Maybe someone has dealt with a lot of Brand X and knows their tapping-system.

With _NO_ real information, you have a fair chance of wiring two 120V windings (if that is what they are) out-of-phase, which will tend to burn-up your house (hopefully blow the circuit fuse before the line-cord starts to burn).

Even once we get the voltage, there is a further trouble-spot. Many cassette decks used DC or servo motors which do not care what the line frequency is. But a very few used AC motors which run at Line Frequency. A 60Hz motor on 50Hz power will run at 50/60 or 83% speed, several semi-tones flat, a 3 minute song takes 3:36 to finish. There is no simple fix for this. (You can bush the pulley and other tricks, but not easy to get right.)
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