I just found a pile of old (1970's) chips marked

4558DV
JRC
1448

in a NOS transister amp.

Are the worth anything - how much are the purists willing to pay.

Cheers

Worth trying out.
 I buy new chips, and install my own 'mojo'. I do a little VooDoo ceremony, then dub the chips officially moejoe'd.
 I haven't been able to convince the chip buying public that these chips are worth 'more' yet though.
 They are gaining a quite a good reputation in my basement though.
 I found they all have the Mojo, [post-ceremonious] except maybe a dud chip.
 The ceremony consists of:
 Biasing them well.
 Voicing the circuit.
 On some circuits/chips...adding [1 or more]  secret ingredients that helps it find it's edge.

Quote from: petemooreI do a little VooDoo ceremony, then dub the chips officially moejoe'd.

Haha.  That works on Fuzz Face and RangeMaster transistors too...just ask some of the boutique builders who hype up those "ultra mega rare" one-of-a-kind Germanium transistors

Phillip

Quote from: Giovani

Are the worth anything - how much are the purists willing to pay.

Cheers

if they have solder on the pins,  they are worth less than NOS. In all cases they are worth exactly what someone is willing to pay, and does pay.

Try EBAY