GR 1390B Random Noise Generator RARE TUBE CLASSIC!

Only TWO available!
Service docs available free on web!

Vacuum tube era instrument is both highly collectible and eminently useful.

Certainly one of the finest pieces of test equipment of all time, we received this
General Radio GenRad GR 13190B from an aerospace bankruptcy in above
average used condition.

It is basically a vacuum tube era random noise generator. Output frequency ranges
are selectable from 20 kiloHertz to 5 MegaHertz. Five step output attenuator.

Image is one of two available units of comparable condition.

This unit is in the "older black" GR livery. We supply an adaptor to fit the older
line cord design.  The unit is 110vac line powered.

You can click here to download the 1390B User Manual that includes full schematics.

We have carefully cleaned and checked the unit which we feel is is in above average
used condition. It appears fully functional  and we will guarantee it serviceable.
May include some cosmetics including case scrapes. Fifteen day inspection privilege.
Buyer pays all shipping.

Should future vacuum tube replacements be required, all remain available at reasonable
costs through the usual web sources. This includes the 6D5 thyratron noise source.

We accept PayPal. No foreign bidders. US-only buyer to pay shipping charges of
fifteen pounds. AZ residents add 8.1% sales tax.

Shipping may be combined on multiple or quantity orders.
Please email us for the lowest possible combined shipping quote.

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