[Milsurplus] 23D4 Ballast Tube?

[David Stinson]

----- Original Message ----- 
From: "Unserviceable but Repairable" <cosmoline at aa4rm.ba-watch.org>
Subject: Re: [Milsurplus] 23D4 Ballast Tube?


> can you believe I 1st saw a BC-689A & this ballast yesterday?
>
> sheesh... exceptions are the rule
>
> Anyone know about the BC-688/89/90 - the pioneer RCA SCR-518 515mhz radar
> altimiter?.  Anyone hankering for a 688 & 89?

If they are, I got half a dozen of these ballasts they can have. ;-)