CA3080E Transconductance Amplifier £1.50 each (27 available)
These are new Harris CA3080E transconductance amplifiers as used in many vintage analogue sythesisers, in standard 8-pin DIL package which I originally purchased in bulk from Farnell some years ago, before the end of production by Harris/Intersil. These parts have the original "H" Harris logo, and are marked CA3080E H9845, the latter part of which the true experts might be able to identify the manufacturing date from. The "E" suffix refers to the standard 0 to 70 Celsius guaranteed operating temperature range with standard 2:1 gM spread between any two devices.
These have been stored in the original anti-static tube as delivered from Farnell and will be handled under anti-static bench conditions and despatched in anti-static packaging, suitably armoured and inside a standard padded bag.
As also used to excess in my Hammond Organ Emulator Design, the device can be used as a current controlled gain element at audio frequencies and up to 2MHz, and there are lots of other mixer, sample and hold, and multiplexer analogue tricks that you can play with them, as described on the Intersil website: Intersil Website for CA3080 data
Tyco 1K Tempco Resistor 3000ppm/C £2.50 each (24 available)
Suitable for use in Oakley Sound VCO modules and many other 1V/octave VCO designs, e.g. in my frequency shifter oscillator design. These were also bought from Farnell in bulk some time ago.
Payment and Ordering
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along with a clear list of what you want in and how many of each in the comments, adding £1.00 for postage in the UK, £1.40 for EC countries and £1.80 for the USA and Canada. I will despatch within 2 working days unless I'm away, so please email me at the same address to make sure that I'm in the country first if it's urgent.