Amp Maker 4W Push Pull Output transformer

Primary Windings

£19.91

Designed for use in 12AU7/ECC99 low power output amplifiers There s currently a lot of interest in creating small amplifiers just 1-2W output. These typically use dual triodes as the output valve: 12AU7, 12BH7, ECC99, etc. This output transformer is designed for just these projects. Of course, the current and flux requirements are much lower and so the transformer can be tiny, too. Together with the 240V/6.3V toroidal transformer, it s perfect for creating a super-compact amplifier. It has clamp-type mounting. Dimensions info This output transformer is just 46mm wide, 40mm deep and 36mm tall.

Primary Windings's own words, read from their page.

Buy from PRIMARY WINDINGS LTDPRIMARY WINDINGS LTD is a UK retailer, not the maker. Price seen 2026-09-26. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.

UK company
Registered at Companies House as PRIMARY WINDINGS LTD, number 14721069. Checked 2026-08-29.
Means the business is a British legal entity, not a British-sounding name owned elsewhere. It says nothing about where anything is made.
UK operations
Not yet checked.
Means people employed here, or premises they actually work from. We keep this separate from the company badge because a registered office can be an accountant's spare room, and a company can be registered in Britain while everything it does happens somewhere else. Where we have not looked, we say so rather than assuming.
British-owned
Not established. Many companies file a statement rather than naming a controlling shareholder.
Read from the register of people with significant control, following the chain of holding companies. It does not gate anything: a firm can be made here and owned elsewhere, and that is worth telling you rather than hiding.
Where it is made
The maker doesn't say, so neither do we.
This is about the individual product, not the company. A British firm can sell things made abroad, which is normal and not a criticism. We would rather tell you which is which than average them into a score.

Amp Maker 4W Push Pull Output transformer

Where this comes from

More from Primary Windings