• The swap meet forum is for private non-commercial transactions. Only unmoderated members can post here.

    diyAudio provides this forum for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members. Use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

For Sale Marsh HPA kits

Things you have for sale.
Kits for the Richard Marsh Headphone amplifier, these are the improved boards of RM Marsh original schematic, designed by Prasi.
They can use multiple types of output transistors. Kits have matched Toshiba 2SA1930 & 2SC5171 and sound superb.
Boards have matched quads of Toshiba 2SK170BL & 2SJ74BL @8.6mA from PunkyDawgs (£40 per quad)

Kit #1 - Fully built and working kit (2 boards stacked) ready to play with Golden Reference PSU bare PCB
Price £55 plus shipping.

IMG_0570.JPG

Bare PCBs for Marsh amp also available.#



Also selling HiFiSonix (Bonsai) SMD HPA with golden reference PCB plus two Extruded heatsinks, I will include a set of matched Toshiba transistors. - £15

IMG_0574.JPG
 

Attachments

  • IMG_0569.JPG
    IMG_0569.JPG
    816.9 KB · Views: 256
  • IMG_0571.JPG
    IMG_0571.JPG
    503.4 KB · Views: 244
  • IMG_0578.JPG
    IMG_0578.JPG
    712.5 KB · Views: 288
Last edited:
All good now folks, many thanks for the support here, Greg, Roar and Steven, diamonds all of you.

Had an infection from operation, got very poorly and it knocked me sideways for a bit. Kind of a depression, couldn't look at the computer, just read books.

Chris has been made good, we are friends. My shameful lack of response is not my way. Apologies Chis, second package on it's way.
 
  • Like
Reactions: 2 users
All good now folks, many thanks for the support here, Greg, Roar and Steven, diamonds all of you.

Had an infection from operation, got very poorly and it knocked me sideways for a bit. Kind of a depression, couldn't look at the computer, just read books.

Chris has been made good, we are friends. My shameful lack of response is not my way. Apologies Chis, second package on it's way.
I appreciate you making things right and glad you are doing better.
 
Infections are no joke. I ended up in the hospital for 5 days a few years ago, with my arm swelling at an incredible rate. Very, very lucky to get it taken care of. Richard, it can happen to anyone. Just glad to hear that you made it through.