Tung-Sol 7591A Power Vacuum Tube (Matched)

6 Reviews
SKU: TS-7591

Availability: Usually ships within 24 hours.

USD $‎53.95

Need matched power tubes? Don't worry! Price includes matching in any quantity you need for no extra charge. Need a matched pair? Just order "2" tubes. For a matched quad order "4" tubes. Matched sextets and octets are available as well.

Finally we have a 7591 vacuum tube that is a close replica of the original NOS tubes. If you have an old Fisher or Scott tube receiver, or other amplifier, the new reissue Tung-Sol 7591A power tube won't break the bank, and will keep them sounding great.

Other Tung-Sol tubes7591 Tube Types

Additional Information and Downloads

Tube Matching Information:
Power Tube Matching FAQ
Perfect Pair System

Warranty Information and Return Policy

Warranty Period: 3 months

All our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)

If you receive a tube that does not perform to the manufacturer's specifications, please do the following:

- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.

Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.

We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.

These guidelines may be updated without notice.

Ratings & Reviews

6 reviews

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Nice Product -- Exceptional Service

by -

I bought a matched set of the TUNG-SOL 7591A output tubes from The Tube Store and am exceedingly pleased with their performance. They confirm
the capabilities of the highly rated Fisher 800C receiver, and make its restoration entirely worthwhile. Rapid <24 hour delivery service was a bonus.

(In the interest of future research I must mention that one of the set of 4 tubes failed within 11 months, displaying a white, cloudy deposit at the top of the envelope. Do you welcome such feedback? And is there warranty coverage?)

7868 conversion to Tung-Sol 7591 in Bogan CHB 35


We have been having a bad time with Electro-Harmonix 7868 tubes cracking at the base and the pins are fatter so they permanently stretch out the socket pins. NOS 7868 tubes are getting ridiculously expensive. I have had success in converting a Bogan CHB 35 to the 7591A's. Rumor has it that the guts are the same with nearly the same electrical characteristics. This does require the changing of the sockets, 9 pin novar to 8 pin octal sockets. The audio results of this conversion have been amazing! Check out H&N Audioworks on Facebook for a sound sample!

Drift Away


I had my Sansui 1000A completely rewired and replaced all the tubes. The power tubes were a matched set of Tung Sol 7591A's. I turn out the lights and just "drift away" like the dobbin bros song. Just a perfect soundstage.

My McIntosh MC225 now sounds wonderful


When I acquired my McIntosh MC225, the tubes that came with it were near end of life. I wrote an email to thetubestore.com looking for recommendations for a new set of tubes for the MC225. I received an email back that recommended :

Preferred Series 7025/12AX7,
JAN Philips ECG 5814A/12AU7,
Electro-Harmonix 12BH7,
Tung-Sol 7591A.

I ordered the tubes in the correct quantity. For the first 25-50 hours on the new tubes my MC225 sounded harsh. Then it got that sweet tube sound and I found out how incredibly wonderful a McIntosh MC225 sounds. I have recently ordered a spare set.

Fantastic tubes


Plug and play in my McIntosh MC225 I found those tubes to be clearer then my vintage tubes. Very dynamic, detailed and beautiful as they match the vintage tube look.
I recommend them in a MC225 no question.