[ARC5] [Milsurplus] ATA- Simple Match

[David Stinson]

On 3/2/2025 11:07 AM, mstangelo at comcast.net wrote:
> Dave,
>
> Your series cap looks like one of the Russian capacitors available on EBay. Where seller did you use?
>
> Mike N2MS
> -----------------------
>
> Hello, Mike.
> Been a long time since I bought these.  I think they were from Bulgaria.
> One of the old Soviet satts.  They were variously named "doorknob" or
> "High Voltage" caps.  I don't see any exactly like them on Ebay
> right now, but there is good news:  For 80 meters, any value
> from 75-200 pFd will work.  50 to 75 pFd for 40 mtrs.
> Also, quality 3KV disc ceramics will work as well- just key,
> tune and hold for a few seconds.  If the
> Ceramic cap heats up, it's no good for RF.
> Tip:  Don't buy the epoxy-dipped blue or red from China.
> I don't know what they use for dielectric but it's useless above audio.
>
> There's a couple of doorknobs on Ebay:
> https://www.ebay.com/itm/115839677635   
> Laughable expensive.
> Here's some inexpensive ceramics:
> https://www.ebay.com/itm/116140816607
>
> When someone uploads some to Ebay, be sure to shop around.  Like many
> of the "boatanchor" sellers, they seem t0 think they're going to pay
> for their retirement by charging $80 for one doorknob cap.  Re-dikker-us.
> Wish I had bought more.  I think I have two left (gave the others away).
>
> TNX ES GL OM DE Dave AB5S.
>
>
>
>
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