Audio Proz Service and Sales


NOS GE 5U4GB

Audio Proz Inv #: 45215

New old stock tubes with original boxes in good condition. Three available.
Most of our tubes are listed without pricing information. If you see something you like, make us a competitive offer and we'll sell them at a price that will make you happy!

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NOS GE 5642

Audio Proz Inv #: 45332

New old stock tubes with original but tattered box.

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NOS GE 50L6GT

Audio Proz Inv #: 45321

New old stock tube with original but slightly tattered box.

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NOS GE 35W4

Audio Proz Inv #: 45325

New old stock tube with original box in good condition.

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NOS GE 12BY7A tubes

Audio Proz Inv #: 44115

New old stock tubes, N.O.S. GE, 4 available. $8 each.

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Local customers, please do not come to the shop without calling ahead first - (617) 926-8020 - for an appointment, so that we can more efficiently help you with your equipment or sound recording needs.

We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock. 

Customers outside of the US, please note that international shipping can be costly (US Post $16 minimum - up to 8oz or 226g). We are glad to combine orders to reduce shipping costs. Take a look at our shipping policies for more information and estimates of prices and shipping time.


NOS GE 12AT6

Audio Proz Inv #: 45260

New old stock tube with original but tattered boxes. Pair available.

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NOS ECG 12BH7A

Audio Proz Inv #: 44187

New old stock tubes with original boxes in good condition. Four pieces available.

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NOS Dumont 5965

Audio Proz Inv #: 44186

New old stock tubes with original boxes in good condition. Three available.

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NOS Amperex DL92-3S4

Audio Proz Inv #: 44126

New old stock tube.

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HH Scott TR-12-18 vintage tube

Audio Proz Inv #: 43238

606-609. Used pullout, tested. Power transformer for model (____?)
Most of our tubes are listed without pricing information. If you see something you like, make us a competitive offer and we'll sell them at a price that will make you happy!

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Groove Tubes GT-KT66-HP matched set of four

Audio Proz Inv #: 45956

New old stock! Matched set of four of these highly desirable and rare tubes, no longer in production. Get them cheaper here!

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We leave "SOLD" items on our website for machines that we often repair and provide parts for. This is to give you an idea of the products we typically carry, and direct you to alternatives you may not know about - we often have substitutes for out-of-stock parts, and are happy to recommend workarounds and different solutions to common problems.


Electro Harmonix EL-34 Tubes

Audio Proz Inv #: 58450

(8) in stock! $18 each, NEW.

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EL84 output tubes

Audio Proz Inv #: 60854

(4) Electro Harmonix [new], (2) Sovtek [new], #10 new stock

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EL34 output tubes

Audio Proz Inv #: 60856

(4) Electro Harmonix (NEW #10 condition) NEW STOCK, priced as each

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Bugera EL34-4 Power Pentodes

Audio Proz Inv #: 53920

Four in box. New.

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Bugera EL34-4 Power Pentodes

Audio Proz Inv #: 53924

Four in box. New.

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Bugera EL34-4

Audio Proz Inv #: 56128

Matched quad set, new in box.

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Need your guitar or bass amp tuned up? We are now doing repairs, upgrades, and modifications to all types of guitar amps. Orange, Mesa Boogie, Fender, Marshall, Hughes and Kettner, Peavey, Ampeg, Gibson, Silvertone, etc. Read more about it here


Bugera EL34-4

Audio Proz Inv #: 56127

Matched quad set, new in box.

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Bugera EL34

Audio Proz Inv #: 58029

Quad set, Hi Quality. condition #10 NEW

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Bugera 6550 B-6 / Electro Harmonix 6550EH

Audio Proz Inv #: 55884

2 Bugera available. 10 Electro Harmonix available.  New Stock (Priced per tube each).

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7199 or GU8A 6 GH8A 6KD8

Audio Proz Inv #: 57498

Tubes for Preamp. 7199 Scarce. Subs available call. Used condition.

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6V6GT output tubes

Audio Proz Inv #: 60855

 Electro Harmonix (2pcs.  new),  Tung-Sol (1pcs. new), #10  Price is each

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12AU7 RCA vintage tube

Audio Proz Inv #: 57588

retrieved from known low use machine. side getter,  clear top, Price is for the Pair. #8+

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Please be aware there is a minimum $4-$6 to ship any part. International orders will be $14-$16 to ship for anything larger than an envelope. Shipping costs are non negotiable, so please, PLEASE do not ask for a part, or for us to search for, or quantify a part if you cannot pay for the shipping.


12AT7

Audio Proz Inv #: 61269

#10 New, 1 available, $14 each.

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12 AU7

Audio Proz Inv #: 61270

(6 available), #10

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