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Post by Trapper_267 on Jan 30, 2024 18:47:13 GMT -5
I have 2 Tram D-201A's i'm recaping and i'm looking at the schmatic and i see C723 listed but neather one of these have C723 in them, I alsp noticed in schmatic it look's as if the Positive side of the cap goes to chassis ground, Can some one post a picture of this cap where it's located and also let me know if the schmatic is correct and the Positive side of the cap does go to ground? I'll included a snap shot of the cap in the schmatic and i circled it. Thank's Scott  |
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Sandbagger
Administrator/The Boss 
Posts: 6,250 
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Post by Sandbagger on Jan 30, 2024 21:18:22 GMT -5
I have 2 Tram D-201A's i'm recaping and i'm looking at the schmatic and i see C723 listed but neather one of these have C723 in them, I alsp noticed in schmatic it look's as if the Positive side of the cap goes to chassis ground, Can some one post a picture of this cap where it's located and also let me know if the schmatic is correct and the Positive side of the cap does go to ground? I'll included a snap shot of the cap in the schmatic and i circled it. Thank's Scott View AttachmentThat is the correct polarity for that cap. It is in the bias network, which runs negative voltage, so you want the positive side of the cap to go to ground. |
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Post by Trapper_267 on Jan 30, 2024 21:23:13 GMT -5
Thank's SandBagger, And where is it's physical location?
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Post by 2600 on Jan 30, 2024 22:24:54 GMT -5
Don't have a picture handy, but under the chassis, alongside the driver and final sockets is a tie strip running from front to back. Should be connected there.
73
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air1
Ratchet Jaw
Posts: 70
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Post by air1 on Jan 31, 2024 9:17:34 GMT -5
It's the cap next to the wire wound resistors. Well I was going to post a pic but as usual it's too big.
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Post by Trapper_267 on Jan 31, 2024 9:23:40 GMT -5
Hey Mr. Nomad. How ya doing? Look at this picture and blow it up and i circled what i think C-723 is? Thank's Scott  |
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air1
Ratchet Jaw
Posts: 70
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Post by air1 on Jan 31, 2024 9:35:23 GMT -5
That's the one. Usually it is parallel to the resistors, as is the other cap 628. C628 has a plastic clamp to hold it in place. Looks like it's missing in your radio. Not a big deal though.
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Post by Trapper_267 on Jan 31, 2024 9:50:49 GMT -5
Thanks Air1
Not my picture, Just one i found,
Copy on C723 location, I'll replace them in mine as needed.
As far as C628. There in my radio with the white clip,
In this picture it's just to the left of the yellow circle, it's that 4.7uF 400V radial cap The cap was probibly replaced with 4.7uF rather than the 4uF becuse Mouser doesn't sell a 4uF 400V Radial cap.
Thank's Scott
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