A Thread for Discussing the Harder to find Components.

Gaetano_AU · Joined: Oct 08, 2011 Posts: 64 Location: Australia

I'll start the thread with some of the harder to find components and what I think they're currently worth. I have no idea what new BA662A's or SAD1024's are worth as is shown below by the ?????. If someone has any of these components listed in this thread they should not sell them here, but in another so it doesn't become cluttered.

Component Name Package Approx. Cost in USD A common application of the device in Electronic Music and / or a brief description of the component

BA6110S SIP09 $2-$5 -- x0xb0x TB303 Clone used as Substitute for BA662A in x0xb0x. -- Single - OTA with Output Buffer/ VCO's, VCF's & VCA's.

BA622A or BA662B SIP09 $????? -- Original TB303 and x0xb0x TB303 Clone 'A' is Better than 'B'. -- Single - OTA with Output Buffer, used by Roland.

CA3080E DIP08 $2-$5 -- Roland SH1 & System 700 VCF, Moog Taurus & MG1 VCA, 9090 Clap. -- Single - OTA with NO Output Buffer / VCO's, VCF's & VCA's.

CA3280E DIP08 $12 -- VCO's, VCF's & VCA's. -- Dual 'Precision' un-buffered OTA

CEM3320 DIP18 $50-$55 -- Sci Pro 1 -- Curtis Electromusic VCF

CEM3340 DIP16 $50-$65 -- Roland MC202/SH101; Sci Pro 1 -- Curtis Electromusic VCO

LM3096N DIP16 $12 -- Transistor Array / 3NPN + 2PNP

LM394N DIP08 $8 -- XR2206 VCO and YuSynth VCO as Exponential Converter. -- Dual NPN / Supermatched Pair

SAD1024 DIP16 $????? -- Dual BBD

SSM2210 DIP08 $10 -- MFOS Ultimate VCO's -- Dual NPN / Supermatched Pair

SSM2220 DIP08 $10 -- Dual PNP / Supermatched Pair

dougt · Posted: Mon Apr 15, 2013 12:13 am Post subject:

Seems very subjective... I'm not sure how you're coming up with prices. Anyone can just come up with prices of what they THINK stuff should sell for.

I sell CEM3340s for $74 all the time on ebay and there's someone else there who has sold them for $89.

I have sold lots of CEM3320s for $54, someone else on ebay has been selling them for $59.

I also sell quite a few BA662As at $44, someone else on ebay has them for $76.

Gaetano_AU · Joined: Oct 08, 2011 Posts: 64 Location: Australia

dougt · Posted: Mon Apr 15, 2013 4:18 am Post subject:

Gaetano_AU · Joined: Oct 08, 2011 Posts: 64 Location: Australia

dougt · Posted: Mon Apr 15, 2013 5:43 am Post subject:

OK, I have a price list on my web page so I don't know if it's necessary to re-list them here but I can if you think it would be helpful.

The problem I have is that you stated the point of this topic is to list prices so that others aren't being "scammed" into paying too much... So when you say in the first post in bold, colored text that a CEM3340 is worth $50 doesn't that imply that I am "scamming" people by selling them for $74 (even though others have been selling them recently for more)?

elmegil · Posted: Mon Apr 15, 2013 10:39 am Post subject:

Perhaps poorly stated, but I interpreted the intent to be more like "let's have an open discussion of value/price so we can know whether the prices being asked are reasonable or not". Since many of us do this as a hobby/sideline, market research is not high on our list, and if we're working on a project that needs a particular component, it's hard to determine whether a price is too high (which could be "scammed" but I think that's a bit hard-line) or too low (likely to be fake).

Unfortunately I can't say that I have any other input into this at the moment, it's been a while since I bought any of those components, and some I've never had reason to (the CEM stuff, while nice, isn't a requirement and for what I'm doing, so to me it isn't currently worth the premium....I'm happy to leave them to people doing repairs).

Gaetano_AU · Joined: Oct 08, 2011 Posts: 64 Location: Australia

dougt · Posted: Tue Apr 16, 2013 5:55 am Post subject:

Oh we could have a whole separate topic on all the fake chips from China, there's tons of them. I've even seen fake SSM2040s.

So how about instead of posting here what price you think chips should sell for how about we post actual recent selling prices of genuine chips? Wouldn't that be more useful?

Gaetano_AU · Joined: Oct 08, 2011 Posts: 64 Location: Australia

BrassTeacher · Joined: Aug 24, 2010 Posts: 27 Location: Kennesaw, GA

Just my input/opinion/thoughts:

I believe the inherent problem here is that we are dealing with mostly obsolete parts, some of which haven't been available for over 20 years now. There are almost too many variables in determining value, or perceived value.
An example from a different perspective: How much is a taillight assembly for a 1965 Mustang worth? (DISCLAIMER: This is just an example, not to be construed/mutated/morphed into any type of discussion of classic car parts)

If you think about it, we have the same basic issues with value as our hypothetical Mustang taillight shopper. Condition? New/used? Reproduction? How badly do I need it? How soon do I need it? etc.

That said, it all somehow eventually boils down to this: A part is only worth what someone is willing to pay for it at a particular point in time.

Another example for the above: If I'm working on a customer's synth, and they need it in a couple days, I'm willing to pay a lot more for a part that I don't have (within reason), as compared to what I'll pay for it when I'm stockpiling a few of them.

Peake · Posted: Sun Nov 24, 2013 12:18 am Post subject:

J3RK on MW just posted that the SSM2220 DIP8 is now available at Mouser for $8.00:

http://tinyurl.com/nbvecsd