Vintage Simmons Drums (UK) Users Group

From my experience, if you are using the EPB, do not use the 27C64 and 27C128, as they are CMOS and require a higher voltage to burn. Attempting this results in either a tick or pzzht sound no matter what the sample is. The only way I have found to get around this is to use a chip burner connected to a PC, and load the .bin files aquired elsewhere. Once burned, they work great in the Simmons gear. 

Hope that helps.

Thomas


--- In Simmons_Drums@yahoogroups.com, "blacklodgeed" <edrose1@...> wrote:
>
> I need to buy eproms to burn for my SDS 7. I know I'm looking for 2764's and 27128's but there seem to be differences within those types of eproms. What do I need to look for and what should I avoid?
> Thanks in advance.
> Ed
>