Re: Need obsolete semiconductor source for TL607

Data*** for the part:

http://focus.ti.com/docs/prod/folders/print/tl607.html

JUNE 1976 - REVISED OCTOBER 1986

Perhaps someone could suggest an alternative part...



"Jeff Liebermann" <jeffl@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:aoine1dukgdn7jik6nomgr8aoc548dp2lb@xxxxxxxxxx
> On Sat, 30 Jul 2005 18:17:50 GMT, "NSM" <nowrite@xxxxx> wrote:
>
>>
>>"Jeff Liebermann" <jeffl@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
>>news:c5bme159190bo6e4h4jtoucpc4bq4ikd6k@xxxxxxxxxx
>>
>>> >> For the curious, I'm currently looking for some TL607 FET Switches.
>>
>>> However, I would prefer the real part.
>>
>>That's a tough one!
>
> Not really. I've practiced parts cannibalism and circuit redesign
> before in order to replace obsolete parts. I recently performed a
> radical substitution for the traditional blown flyback xformer in a
> Tek T922 scope. If you know how the circuit works (and have an
> accurate schematic), then such redesign and substitutions are easy
> enough.
>
> However, I'm lazy and have a limited amount of time to redesign the
> circuitry. I bought the Wavetek 3000b on eBay for about 60% of what
> it was worth. Having worked with similar vintage service monitors
> (Cushman, SSI, CT Systtems, TFT, etc), I thought it would be fairly
> easy to repair. Identifying the smoking part was easy enough.
> Replacing the melted socket was not much of a challenge. However, I'm
> currently stuck at finding a replacement IC.
>
> This is not the first time I've searched for old parts. What I've
> found are various online "parts finder" sites, that will offer to find
> obsolete semiconductors. The ritual is to fill in an online request
> for a quote, and they will allegedly contact me with price and
> availability. All of them list their inventory online and most show a
> TL607 in stock, somewhere. One claims to have 11,000 available. If I
> needed 11,000 parts, this vendor might be useful, but I only need a
> few parts. In general, *AFTER* I fill in the info for a quote, the
> web page announces that there's anywhere between a $100 and $400
> minimum purchase. Incidentally, the $100 is a lie because this vendor
> wants another $100 for "shipping and handling".
>
> So, what I need is an online vendor, that sells small quantities of
> obsolete semiconductors and IC's, that doesn't have a ridiculous
> minimum. I suspect that this is a chronic and common problem in the
> repair biz and was hoping that someone knew of a reliable source.
>
>
> --
> Jeff Liebermann jeffl@xxxxxxxxxxxxxxxxxxxxxx
> 150 Felker St #D http://www.LearnByDestroying.com
> Santa Cruz CA 95060 http://802.11junk.com
> AE6KS 831-336-2558


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