Vintage Synth Repair

I can see listings for tubes of 4011s, £6.49 for 20, etc
No tc5501 anywhere, or 5101 either..

--- In vintagesynthrepair@yahoogroups.com, Philip <eggwheatis@...> wrote:
>
> I source all my IC's off ebay usually.
> 
> 5501 ram is the same as 5101 ram which is plentiful also used in tons of 
> Williams pinballs and video games.
> 
> 
> 
> 
> 
> ________________________________
> From: rakky <pargroups@...>
> To: vintagesynthrepair@yahoogroups.com
> Sent: Fri, 10 September, 2010 11:13:54
> Subject: [vintagesynthrepair] Needs some chips: 4011 and TC5501P-1
> 
>   
> I'm about to start mucking about with a few old drum machines (DR-55s, 
> Soundmasters and EDC). These were considered uneconomic to fix, 5 years ago. 
> Now, a DR-55 can go for £200..
> 
> Usual problem with DR-55s is the 4011 chips pack up. Maplins are charging nearly 
> a quid for a 4011, and I've found them to be a bit hit-or-miss. And they don't 
> have any in stock locally. 
> 
> Anyone have a suggestion for a cheap UK supplier?
> 
> Next-up, I have at least one machine which is playing-up as if the RAM chip is 
> duff. Unfortunately, the chip is a Toshiba TC5501P-1.
> Again, any suggestions for a cheap UK supplier?
> 
> What's really annoying is that I had a tube of 4011s somewhere (5 years ago). 
> Can I hell find them :(
>