[sdiy-market] [SOLD] Tripath audio amp - EPROM, USB, CPLD devkit still available (UK but will ship)

[Steve Lenham]

Tripath evaluation board is sold - thank you.

On 26/04/2023 15:11, Steve Lenham wrote:
>
> Hi,
>
> Read on for the next set of stuff off the top of the pile looking for 
> a new home! Today: development boards.
>
> Postage at cost to wherever you are. Payment by bank transfer or Wise 
> preferred - can also take PayPal but with a surcharge to cover their 
> ridiculous fees. If you think my pricing is wrong or would like to buy 
> multiple items, get in touch!
>
> Thanks for looking. Happy to answer any questions. More to come!
>
> Cheers,
>
> Steve L.
> Benden Technology
>
> 1. Willem EPROM programmer (previously posted but unsold - price 
> reduced) - asking GBP20.
>
> The Willem programmer was an open-source DIY design that enjoyed many 
> iterations and still forms the basis of a lot of the cheap Far Eastern 
> programmers. This one was built by my own fair hand using a commercial 
> PCB (version 3.1 ATH, if you are Googling) and I used it for many 
> years before upgrading. Plenty of information is still available 
> online including the driver software.
>
> Settings are made manually using jumpers and DIP switches, which means 
> you need to be careful but also makes it a very versatile device, 
> capable of programming all sorts of things (EPROM, EEPROM, FLASH, 
> micros, etc.). Communication with the host PC is via the old-school 
> parallel port (and it needs to be a "real" one).
>
> This one comes with a couple of adaptors that are particularly useful 
> for vintage synths:
>
> - Adaptor for 2716 and 2732 EPROMs. The Willem handles larger EPROMs 
> directly but needs a pin adaptor for these. This is what I used most.
>
> - Adaptor for reading and writing Intel MCS-48 microcontrollers. This 
> will read mask-ROM 8048/49s as found in a lot of early Roland synths 
> and program the EPROM equivalents (8748/49).
>
> Willem programmer
>
> Overall, a very useful device if you are willing to get a bit 
> "hands-on" - which hopefully everyone here is :-)
>
> 2. Tripath EB-TA2020 evaluation board for TA2020 2x20W Class-T 
> amplifier - asking GBP15.
>
> Tripath were one of the pioneers of switching audio amplifiers and 
> made some very nice-sounding devices before, I believe, going bust! 
> This is an evaluation board for their then-popular TA2020 device and 
> can effectively be viewed as a small (10cm x 6cm) stereo amplifier 
> module delivering 20W/channel into 4 ohms from a 13.5V supply. Input 
> is via phono connectors and there are banana sockets for power and 
> outputs. Comes with datasheets for device and board. This was briefly 
> used for evaluation then stowed away.
>
> 3. DLP-245PB USB/PIC microcontroller development module - asking GBP10.
>
> This is a little plug-in (DIL) module containing a PIC16F877 micro and 
> an FTDI FT245 USB interface, i.e. everything required to implement a 
> basic piece of USB hardware. The manufacturers (DLP Design) provide 
> USB drivers and example code, so it is a really easy way in to USB. 
> Not sure if I ever actually used this - don't remember doing so, so it 
> is basically untouched :-)
>
> See https://www.dlpdesign.com/usb/245pb.shtml for more details.
>
>
> 4. Elektor Altera MAX CPLD programmer/development board plus parallel 
> JTAG interface - asking GBP20.
>
> This is a development board for the Altera MAX7000 family of CPLDs, 
> specifically the EPM7128. It was published in Elektor magazine back in 
> 2004 alongside a multipart tutorial in the subject and I built one 
> carefully using one of their PCBs before doing precisely nothing with 
> it. It has never even been powered up. Comes with a matching Elektor 
> parallel port JTAG interface, but there is no reason why a more modern 
> USB JTAG port (not supplied) couldn't be used.
>
> I can supply copies of the Elektor build info and tutorials if 
> desired. Programming software was Altera's Quartus suite - I don't 
> think I have it on file, but it's probably out there on the Web somewhere.
>
>
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