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i found v1 pin 2, and v5 pin 2 have about 40vdc. It should be .6 vdc and 3 vdc. The rf gain is on this line. I can't figure out where the 40vdc voltage is coming from. any help would be very appreciated. Thanks
I get a nice loud tone when i set up to test a1 thru a8. The 266khz signal is connected to pin 4 of a5,a6 transformer The vtvm doesn't move much though. maybe the problem is between, the a5,a6 transformer, and the anntenna.
I tested around and I realigned A15 A14, A13 A12. some of the lugs don't work, A15, and the top lug 14 of 14/13. also, v1 pin6 should be 75vdc. its 152vdc. The 5pin should be 115vdc, its 153vdc. I know we can fix this dang thing my friend. It's gonna sound great with my sure 444D i can see the...
Oh sh.. My apologies. That was something i got off the internet. it looked good but it didn't magnify very well. i'll take a photo and load it for you my friend. Thanks Nomad. here ya go is that better my friend.
Everything works now except for the rf gain, and the receive. the crystal bank seems to be working. but, the rfgain doesn't work. feels like theres nothing inside. someone may have sprayed wd or something, or maybe it got scorched i'll have to change out that rf gain
Anyway, I got the transmit working. the dial is 2 channels off. but still no receive. Thats a big section too. The negative ground connection between the crystal bank, and the radio was not soldered. Now it is. i think it helped. but still no rec.
I traced it down to the crystal bank, im not getting voltage from there to the v3 tube 2 pin. the rest of the voltages are okay on v3. it is -.452vdc. It should be -3vdc
Thanks nomadradio. I got it loose. And very thing is working, but it does not change frequency when i change channels. it stays at 26.9350, with the antenna cable removed. with the antenna plugged in it is 13. 4534 . also no receive.
Now im trying to loosen up the channel knob where it connects to the crystals i sprayed electic cleaner. but it didnt work. i think its seized where the shaft goes thru. i may have to take it apart.
I replaced the diodes, no change. I get -35vdc where it should be -15. im only giving it 90vac from the variac. strange the dc voltage is a little higher after the 10uf resistor coming from the red transformer wire. It should be lower i believe.
Yep, it didn't take much for that one capacitor i did measure about 3.5 volts ac on the capacitors. and 20 vdc also. the variac was at 20volts also. idn
Two of the diodes, in the radio measures about 1.2 meg. ohms. The other two show 1.9 meg. ohms I'm ordering some new diodes. also, i used a diode tester on my fluke. all 4 beeped, and are in the .546 ohm range.
Hello my friends, im reviving a Utica TandC 111. the 40uf 450 vdc, capacitor, i'm pointing to in the picture, and the 2/ 10uf resisters also pointed to in the photos. are connected to the red 2 wires from the transformer. when i tried to bring it up slowly on the variac. but they started...
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