I bought a neat old Chinese military receiver on ebay some time ago. Unfortunatly it has a bad 1B2 chinese tube. I don't believe there is a knowen American conversion tube for this. If there is please tell me? if not does anyone know where I can buy a chinese 1B2 vacume tube please? regards, Elmer (Idaho)

On Dec 12, 2:08*am, Elmer Sharpe Elmer.Sharpe.
wrote:
I bought a neat old Chinese military receiver on ebay some time ago.
Unfortunatly it has a bad 1B2 chinese tube. *I don't believe there is a
knowen American conversion tube for this. If there is please tell me?
if not does anyone know where I can buy a chinese 1B2 vacume tube
please? *regards, Elmer *(Idaho)

--
Elmer Sharpe

Did you try to email the guy you bought it from? Some guy here in
Redmond, OR has been selling old Chinese military radio stuff at ham
swap meets and also on Ebay. Did you get it from him?

Paul, KD7HB

Elmer Sharpe wrote:

I bought a neat old Chinese military receiver on ebay some time ago.
Unfortunatly it has a bad 1B2 chinese tube. I don't believe there is a
knowen American conversion tube for this. If there is please tell me?
if not does anyone know where I can buy a chinese 1B2 vacume tube
please? regards, Elmer (Idaho)

I think that is a current production Shuguang tube but I do not have a
Shuguang databook here.

I do have a Toshiba 1970 tube handbook which lists a Japanese 1B2 type
as a diode-pentode. Ri=500K, mu=13.5, B7G basing and 1.4V filament.

Check your circuit and see if the basing looks like that of a 1S5 tube.
If so, give the 1S5 a try, I think it should work.

Otherwise you can try tube dealers, but the 1B2 is the kind of thing
that folks try NOT to get from Shugang because there's little demand.
--scott





--
Elmer Sharpe


--
"C'est un Nagra. C'est suisse, et tres, tres precis."

"Elmer Sharpe" ha scritto nel messaggio
...

I bought a neat old Chinese military receiver on ebay some time ago.
Unfortunatly it has a bad 1B2 chinese tube. I don't believe there is a
knowen American conversion tube for this. If there is please tell me?
if not does anyone know where I can buy a chinese 1B2 vacume tube
please? regards, Elmer (Idaho)



According to http://makezine.com/images/store/Vac...be%20Radio.pdf the 1B2
is equivalent to the fairly common 1S5 tube.

73

Tony I0JX