TechTimeWarp
@iconicbits.bsky.social
All things #retrocomputing, #electronics and associated repair.
@museumjoe.bsky.social I somehow managed to lose the ICs for my Titan III Plus IIe cardset before I got around to building it. Is it at all possible to purchase a new PAL set (A5, B3, C1, C2, D1, D3, E2 and UD6)? Thanks for all that you do!
November 3, 2025 at 5:34 PM
@museumjoe.bsky.social I somehow managed to lose the ICs for my Titan III Plus IIe cardset before I got around to building it. Is it at all possible to purchase a new PAL set (A5, B3, C1, C2, D1, D3, E2 and UD6)? Thanks for all that you do!
I managed to get a functional ceramic MOS 6502 for a fraction of what they normally go for; it was cheaper due to the faded silkscreen and solder pin reinforcement/repair on two pins. It also had some flux residue that made it less attractive (easily cleaned). #6502 #retrocomputing #apple1
February 5, 2025 at 6:18 PM
I managed to get a functional ceramic MOS 6502 for a fraction of what they normally go for; it was cheaper due to the faded silkscreen and solder pin reinforcement/repair on two pins. It also had some flux residue that made it less attractive (easily cleaned). #6502 #retrocomputing #apple1
I couldn't get a ceramic 6502 (well I could, but not willing to spend thousands on one) but did get a nice ceramic 6820 PIA for under $20. #mimeo #apple1 #retrocomputing #vintagecomputer
January 18, 2025 at 7:12 PM
I couldn't get a ceramic 6502 (well I could, but not willing to spend thousands on one) but did get a nice ceramic 6820 PIA for under $20. #mimeo #apple1 #retrocomputing #vintagecomputer
I finally started working on a "Mimeo" Apple 1 replica board I bought from Mike Willegal over a decade ago ( May 2013) along with a PROM set, cassette interface and Datanetics PCB. I'm still waiting on a few parts to arrive. #retrocomputing #apple1 #mimeo1
January 18, 2025 at 3:42 PM
I finally started working on a "Mimeo" Apple 1 replica board I bought from Mike Willegal over a decade ago ( May 2013) along with a PROM set, cassette interface and Datanetics PCB. I'm still waiting on a few parts to arrive. #retrocomputing #apple1 #mimeo1
Recently built "Snark Barker" Sound Blaster clone board. It worked first try which was a relief as some chips were bought from eBay (NE558, TEA2025B, YM3812, YM3014B, SAA1099). Finished it off with a 3D printed steel bracket from #JLCPCB. #retrocomputing #soundblaster #snarkbarker
January 8, 2025 at 5:58 PM
Recently built "Snark Barker" Sound Blaster clone board. It worked first try which was a relief as some chips were bought from eBay (NE558, TEA2025B, YM3812, YM3014B, SAA1099). Finished it off with a 3D printed steel bracket from #JLCPCB. #retrocomputing #soundblaster #snarkbarker
Got one of the new MacEffects front panels for my Lisa. This is what Apple should have done back in the day. #applelisa #retrocomputing
December 21, 2024 at 7:44 PM
Got one of the new MacEffects front panels for my Lisa. This is what Apple should have done back in the day. #applelisa #retrocomputing
This morning I updated a Sound Blaster 16 CT2740 from DSP v4.12 to v4.17 which corrects the hanging note bug when using the MPU401 interface or Wave Blaster header. It's pretty easy to do; unsolder the DSP, install a socket, program an 89S52 and pop it in.
November 27, 2024 at 8:53 PM
This morning I updated a Sound Blaster 16 CT2740 from DSP v4.12 to v4.17 which corrects the hanging note bug when using the MPU401 interface or Wave Blaster header. It's pretty easy to do; unsolder the DSP, install a socket, program an 89S52 and pop it in.