[Amps] MLA2500 Delay Relay

[K7ZS]

Hello

I am looking for a source of the Amperite Delay Relay tube, in the 9 pin
package, for a Dentron MLA-2500B

The part number is 6N075T for a 75 second delay.

Also, if anyone has one with a longer delay would be nice too for one that I
am going to convert to 3CPX800A7's  that need 180 seconds.  (I realize you
can increase the '75' parts delay time with a dropping resistor)

Anybody having one or both of these, or a source please come forward!!

Tnx es 73 Kevin K7ZS
k7zs at earthlink.net