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Vox Amp Parts

Transistors for Vox Amplifiers by Thomas Organ - New Old Stock

These are the exact original transistors used in Thomas Vox amps from the 1960s. Most of these transistors are discontinued items and are no longer available. While you can still buy "generic, one size fits all" transistors from substitution suppliers, why not use the actual parts and keep your amp, and it's tone, original? No returns, exchanges, warranties, or exchanges on transistors. All sales are final.

Schematics supplied from North Coast now include all the Thomas transistor numbers.


Green/Yellow or Green (Thomas 86-5044-2) S-NPN
NCM-152



Green/Yellow or Green (Thomas #86-5044-2) S-NPN - The most common of Thomas Vox preamp transistors. Found in virtually every American Vox transistorized amp, and no longer manufactured. I only have about 100 of these to sell, and they are NOS (new old stock) original parts I purchased from a company in California that bought the closeout of all Thomas electronic parts. Can be identified in your amp by either a green and yellow dot, or by just a green dot. May vary slightly in appearance from picture at left.

There are no returns, exchanges, warranties, or refunds on this part. All sales final.

Price: $8.00 USD each
US Shipping/Handling: $0.50 USD each
International Shipping Quotes: CLICK HERE
Part #: NCM-152
Order Quantity: Add To Order


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Blue  (Thomas 86-5082-2)  S-PNP
NCM-153



Blue (Thomas #86-5082-2) S-PNP - The most second most common of Thomas Vox preamp transistors. Found in virtually every American Vox transistorized amp. Can be identified in your amp by a blue dot. May vary slightly in appearance from picture at left.

There are no returns, exchanges, warranties, or refunds on this part. All sales final.

Price: $3.00 USD each
US Shipping/Handling: $0.50 USD each
International Shipping Quotes: CLICK HERE
Part #: NCM-153
Order Quantity: Add To Order


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Input FET  (Thomas 86-5095-2)  N-FET
VAP-154



Input FET (Thomas #86-5095-2) N-FET - Used in the preamp stage of Buckingham V1123, Guardsman V1133, Beatle V1143, Viscount V1153 and V1154. The device is a low noise FET used in the first input stage of the preamp. I only have about 50 of these to sell, and they are NOS (new old stock) original parts I purchased from a company in California that bought the closeout of all Thomas electronic parts. May vary slightly in appearance from picture at left.

There are no returns, exchanges, warranties, or refunds on this part. All sales final.

Price: $10.00 USD each
US Shipping/Handling: $0.50 USD each
International Shipping Quotes: CLICK HERE
Part #: VAP-154
Order Quantity: Add To Order


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Input FET  (Thomas 86-5095-2)  N-FET
NCM-155



Switching FET (Thomas #86-5098-2) P-FET - Used in the preamp stage of Buckingham V1123, Guardsman V1133, Beatle V1143, Viscount V1153 and V1154. The device is a switching FET used to enable the fuzz and MRB functions. I only have about 50 of these to sell, and they are NOS (new old stock) original parts I purchased from a company in California that bought the closeout of all Thomas electronic parts. I believe these are the last of these to exist in the world. This part was discontinued by semiconductor manufacturers twenty years ago. May vary slightly in appearance from picture at left.

There are no returns, exchanges, warranties, or refunds on this part. All sales final.

Price: $15.00 USD each
US Shipping/Handling: $0.50 USD each
International Shipping Quotes: CLICK HERE
Part #: NCM-155
Order Quantity: Add To Order


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Yellow  (Thomas #86-5050-2)  S-NPN
NCM-178



Yellow (Thomas #86-5050-2) S-NPN - Another common Thomas Vox preamp transistor. Found in virtually every American Vox transistorized amp. Can be identified in your amp by a yellow dot. May vary slightly in appearance from picture at left.

There are no returns, exchanges, warranties, or refunds on this part. All sales final.

Price: $7.00 USD each
US Shipping/Handling: $0.50 USD each
International Shipping Quotes: CLICK HERE
Part #: NCM-178
Order Quantity: Add To Order


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Driver Transistor
NCM-179



Driver Transistor (Thomas #86-5085-2) S-NPN - This is the driver transistor to the output stage used in the Super Beatle/Beatle, Royal Guardsman, Westminster, Sovereign, and Churchill amplifiers. There is one of these in an amp. This is another incredibly rare transistor, and when my stock is depleted, there will be no more available at North Coast.

There are no returns, exchanges, warranties, or refunds on this part. All sales final.

Price: $8 USD each
US Shipping/Handling: $0.50 USD each
International Shipping Quotes: CLICK HERE
Part #: NCM-179
Order Quantity: Add To Order


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