If you add the extra cap to the back of the 238 tuner, it is added to position 3, 4, and 5 -- not just 5. I found this out while doing a repair. The schematic seems to indicate this, but the verbiage
This refers to the additional cap location with the wing nut on the back of the 238. You can add addional capacitance if the tuning solution needs it (e.g. 160M). I think a 1000pf came with the tuner
Im working on a Paragon and it has a small, extra board, 81420, mounted up close to the display. The silkscreen and connectors match the rest, so Im pretty sure its Ten Tec built, but I can find no r
Looking for a copy of this. This was the Ten Tec solution to add the RF gain control to the 525 Argosy. I have the Ham Radio Magazine article, and the web version of the same content already, as wel
I am refurbing a 238 tuner, and the red pulley/pointer is missing. Does anyone have a source (3D print) for a new one? (this is not a simple red pointer like on the Omni/Triton that hangs on the cord
Email sent, John. Thank you! Folks, I dont have a 3D printer is there anything I can do with this to help prep the design so we can make more in the future? How do you go from an actual object to the
Does anyone know when the Omni-A transitioned from having one crystal filter and three audio filters (ala a "245"-style filter) to having three crystal filter slots? I didn't even know the former ver
Was the crystal version what they called "Series B"? Bill W1PA Does anyone know when the Omni-A transitioned from having one crystal filter and three audio filters (ala a "245"-style filter) to havin
I realize the KR50 is close (and available on the web), but wondering if anyone has a copy of the 645 manual specifically? (it matches the color scheme of the Corsair I) Bill W1PA
Please summarize what you learn. I replaced both finals on my refurb Corsair I over the summer; it was actually simpler to diagnose as both were gone. I used MRF454's instead. The biasing was tricky
A 2.4KHz B 1.8Khz C 500Hz D 250Hz Mode = SSB, A, B, and C are put on 3, 2, 1 Mode = CW B, C, and D are put on 3, 2, 1 If you don't have the 1.8Khz, and don't have the jumper, that position in the seq
Must be Corsair week. :-) I have a new-to-me Corsair I -- my winter refurb project. Good receive (mostly), good condition, two primary issues: 1. No RX 160 and 80: freq counter bounces around on 0.18
Number 1 is fixed. As pointed out/suggested loose crystals. I should have know this from my Omni-A/D/C experience. Now on to #2: On transmit I see no power, and no current draw. Whats the best way to
Thanks Al. Yeah, I thought of that. At the risk of overthinking this: - no ALC light at all - zero output (both finals gone?) - zero additional current (finals are not shorted?) - both open? maybe th