Heyboer Transformers
Premium guitar amplifier power transformers, output transformers and chokes.
Proudly manufactured in the U.S.A.

Our Part#	OEM Part#	Type	Rating
APD-8031H	HTS-13239	Output	15Watt - 4/8/16 Ohm

Classictone 40-18022, Classictone 40-18022, Classictone 40-18022

Alternates: None Classictone 40-18031, classictone.net, 40-18031 classictone

Reference#: 125A35A, 125A3A, 022905

Description: This is a larger, multi-purpose version of the original single ended, 5W output transformer used in Harvard, Champ, Vibro-Champ, Tweed Princeton, and Bronco Style amplifiers. These can be used as an upgrade for these amplifiers as well as others like Marshall Class 5, Kustom Defender 5H, Vox AC4C1, Vox AX84 P1 Extreme, Epiphone Valve Jr and more. It can be used in higher wattage, single ended, amplifier projects which require up to 15W. They can be used with 6V6, EL84, EL34 and 6L6 output tubes. These can also be used with twin 6V6 or EL 84 tubes wired in parallel. This will provide increased headroom and clarity when used with single 6V6 and EL34 stages. These feature 5K & 8K Ohm primary impedances and 4/8/16 Ohm secondary impedances. If these are used as an upgrade in original Champ style amplifier chassis, they may require chassis hole modification since they are slightly larger than the original. This is a paper wound output transformer just like the original vintage to reproduce the perfect tone!

Mounting 2 7/8” on centers

Classictone single ended Output Transformer 40-18031, classictone.net, classictone

Used In: up to 15W single ended upgrade for Champ, Tweed Princeton, Vibro Champ, Harvard, Bronco, Epiphone Valve Jr, AX84 P1 Extreme, Kustom Defender 5H, Marshall Class 5, Vox AC4C1, Blackheart Little Giant style amplifiers and more!

Classictone Deluxe Output Transformer Classictone 40-18031, classictone.net

Classictone Deluxe Output Transforme 40-18031, classictone 40-18031

Classictone, Classictone 40-18031 classictone classictone.net classictone 40-18031

classictone classictone classictone classictone 40-18031 40-18031 transformer

Return Policy
Because these are electronic components, returns are only accepted on Damaged, DOA or Unused units only.
Return shipping costs are the responsibility of the purchaser.
Prior approval is required for all returns. Contact Sales for an RMA Number.
Returns are subject to a restocking fee equal to any Credit Card, eBay or PayPal fees associated with the original transaction.

*Disclaimer: All of the above listed amplifier models are trademarks of their original manufacturers.

Fender Champ Style 15W Upgrade Single Ended 4/8/16 ohm 15W Output Transformers APD-8031H