For lower power projects like preamps, headphone amps, etc. I like to use power supplies with TO220 voltage regulators.
I designed a universal board for this.
To power a recently built OREAD, among other things, I had some new supply boards made and now have some spare boards for sale.
The board can be used with TO220 voltage regulators like LM317/337 and 78xx/79xx or others with the same pinout.
It also allows the use of: fuses, RC-snubbers for transformer secondary windings, rectifiers like 1N54xx for full 1.5A current, CRC filtering, suitable heatsink,
soft start for output voltage.
The circuit below shows values for +/-15 volts output. A BOM (example/proposal) will be sent to buyers via email.
this version sold out. new version available, see last post.
If interested: Email/PM me
I designed a universal board for this.
To power a recently built OREAD, among other things, I had some new supply boards made and now have some spare boards for sale.
The board can be used with TO220 voltage regulators like LM317/337 and 78xx/79xx or others with the same pinout.
It also allows the use of: fuses, RC-snubbers for transformer secondary windings, rectifiers like 1N54xx for full 1.5A current, CRC filtering, suitable heatsink,
soft start for output voltage.
The circuit below shows values for +/-15 volts output. A BOM (example/proposal) will be sent to buyers via email.
this version sold out. new version available, see last post.
If interested: Email/PM me
Last edited:
For my preamp project I received new
power supply boards: NT218_R11
Slightly modified compared to version R10, including the option for additional input connectors (Faston, flat plugs).
For further information, read first post, and see this directory:
http://suzuki-gt250.de/misc.electronics/AUDIO/NT218_R11/
The remaining boards are for sale
Price per empty board: 6.50 €
shipping cost incl. tracking inside EU: 10€
If interested: Email/PM me
power supply boards: NT218_R11
Slightly modified compared to version R10, including the option for additional input connectors (Faston, flat plugs).
For further information, read first post, and see this directory:
http://suzuki-gt250.de/misc.electronics/AUDIO/NT218_R11/
The remaining boards are for sale
Price per empty board: 6.50 €
shipping cost incl. tracking inside EU: 10€
If interested: Email/PM me
Last edited: