Note that I have had to
raise the price somewhat recently. Check here for more information
about this and my projects in general:
https://electronics.dose.se
UPDATE: Here is a review of this card by DOS Storm:
https://www.youtube.com/watch?v=BQjWDRw3lDE
Brand new 8-bit ISA Sound Blaster 1.5 clone board, including C/S Game Blaster chips. This is revision 3.0 of the board. This version contains a volume control knob as demonstrated in the video above plus a few more enhancements. These are all the features of the board:
* Adlib (OPL2)
* Sound Blaster sampled audio
* MIDI, through the usage of a Joystick-to-MIDI adapter
* CMS (SAA1099) Game Blaster chips installed
* Amplified mode / line level mode
* Volume control for the amplified mode
* Microphone bias selectable option for tip or ring
* Plastic bracket included
* Metal bracket offered separately
It is 100 % compatible with the original Sound Blaster 1.0 and 1.5 by Creative. All old components have been switched out for modern surface-mounted chips, with the exception of the OPL2 and C/MS chips, which are kept original. Some boards have through-hole OPL2 and 8051 chips (first image!), other are surface-mounted (second image). If you are picky about it, tell me and I'll make sure you get the version you want. Functionality wise they are 100 % equivalent. Only the looks of them differ.
Included in this package is a plastic bracket. If you want a metal bracket they can be found here:
https://www.ebay.com/itm/175682254889
They are 3D printed and hence rather expensive to make, so in order to keep the cost of the board down I opted to keep the metal bracket separately. The plastic bracket is probably sufficient for most people, but if you want something sturdier you have the option to get a metal one.
The board has two CMS (aka SAA1099, aka Game Blaster) chips mounted, one for the right and one for the left speaker. Here are two videos that compare OPL2 (or Adlib) with C/MS sound running Monkey Island:
Adlib (OPL2):
https://electronics.dose.se/videos/monkey_island_adlib.mp4
Game Blaster (C/MS, SAA1099):
https://electronics.dose.se/videos/monkey_island_cms.mp4
The sixth image shows the switch between line level mode and amplified mode. In amplified mode, you can use the volume knob to adjust the volume level. This is probably what most people want so that you can use passive headphones without built-in amplifier.
The penultimate image shows the microphone bias option. Some microphones need external power in order to work, other, passive ones don't. You may set the switch according to your needs. Either the tip or the ring can be powered as is described on the board.
It fits in any computer with a spare ISA slot. It is an 8-bit board, but works well in a 16-bits slot too. I test all boards before delivery on a Pentium-90 running Wolfenstein 3D. The video attached to this listing shows an example of this test.
If you have any questions, drop me a message! I usually reply quickly.
Thanks for looking!