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Old 06-14-2021, 03:01 PM
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DavGoodlin DavGoodlin is offline
Motorola Minion
 
Join Date: Aug 2011
Location: near Strasburg PA
Posts: 3,413
The larger sets are here https://www.radiomuseum.org/r/saba_s...r_telec_2.html

The smaller TV is this one https://www.radiomuseum.org/r/saba_p...mputer_cp.html

So far, it looks like only the antenna F-connector is a clue besides the US plug. Inside, I also found a 300mf 350v Mallory cap had been added to the power supply. https://www.youtube.com/watch?v=krD4hdGvGHM

Cold checks always before power up's ! I agree with Shang066 its not good to slowly raise line on a SS TV! Sweep circuits do not operate at lowered line voltages and other self-diagnostics, however primitive, will not always activate linearly. First, all 3 fuses were OK; one 2A at primary and two on secondary's of the power transformer.

I used my new toy (Peak ESR 70) to test the e-caps, checked most power transistors and driver transistors with Fluke, touched up some solder joints on the sweep board under stress-producing cable plugs and transformers, etc.

This reminds me of a some USA sets-circuitwise, but not a GTE product. On the PS board, one 10 mf electrolytic cap tested open, one regulator transistor 2N3055 shorted E-C, and only one high ESR 4.7 mf cap on the sweep board. I felt confident it would either work or sort of try to work and it did.

Drawing just 26 watts at 120v with static from the speaker confirms voltages measured. There is a 12v (5.5v meas) 20v (18v meas) and 174v (105v meas) source voltage per the schematic, but no signs anywhere of a two-primary power transformer, additional fuses or taps. Otherwise it looks stock with a USA plug!
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Last edited by DavGoodlin; 06-14-2021 at 03:21 PM.
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