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Bally MPU AS-2518-35 sourcing chips

Mickp

Registered
Joined
May 20, 2021
Messages
22
Location
Essex
Hi all,
Does anybody know the best place to source any of these replacement chips or equivalents, if available for the Bally MPU AS-2518-35 ?
U12 Timer (555)
U19 Quad 2 input (4011)
U9 MPU I.C. (6800)
U10 + U11 PIA I.C. (6820)
U7 Ram I.C. (6810)
U20 Hex Buffer I.C. (14502B)
U14 + U18 Hex Inverter (4049B)
U15 Quad memory drive (MC 3459L)
U16 Dual Monostable (9602)
U17 Quad 2 inputs ( 74L00N)
U8 Ram (C MOS , P5101L-3)

Thanks in advance
 
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most of those can be had on ebay,just avoid the china sellers,unless you don't mind having to wait a month for it to arrive and risk them being used pulls or fake
 
Thanks for your help I have spotted a few on eBay guess I need to be a bit carefull
 
u10, 11. is 6821 pia

all readily available.

you probably don’t need to replace all of those on a non working board? or are you building one from scratch?
 
u10, 11. is 6821 pia

all readily available.

you probably don’t need to replace all of those on a non working board? or are you building one from scratch?
Hi Alan thanks for the part numbers I have 2 boards I am wanting to try and repair , And another board which is good which I didn’t want to mess around with until I knew I could get the chips, in case the legs broke off etc ,
 
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