Couldn’t quite understand the question. If you’re referring to Norberto’s new backplane PCB
https://koyado.com/heathkit/New-H8-Website/h8-backplane.html
in the last update I recall from him he was going to work on that after completing the H-8-5 update, which he’s now hopefully nearly done on. There were some adjustments needed to the layout on the board.
Todd Goodman has been handling the board ordering, inventory, and shipping. His list of currently available boards is here:
https://retrobrewcomputers.org/doku.php?id=boardinventory#norberto_collado_s_heathkit_h8_h89_boards
If you’re referring to the gold bus pins themselves, they’re available from most electronic parts supply shops or even Amazon.
I use these
https://www.peconnectors.com/pin-headers-straight-1x-row-.100/hws3002/
just make sure they’re .318” high.
Most comments here recommended the Hakko desoldering tool for removing the old connectors
https://hakkousa.com/products/desoldering/fr-301-portable-desoldering-tool.html
replacing the pins is not hard but does take some time and patience. Goes much smoother if you have the right tool! If you don’t need the capabilities of the new backplane (e.g. PC ATX power supply) re-pinning your old board is a perfectly good way to go…
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On Jul 30, 2022, at 5:10 AM, 'john' via SEBHC <se...@googlegroups.com> wrote:
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Added backplane simple BOM.
http://koyado.com/heathkit/New-H8-Website/download/h8-bp_2_0_bom.xlsx.zip
Norberto
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