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Transistor Substitutions & Cross Reference

TheRealPorkchop

TheRealPorkchop

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Aug 25, 2015
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Is there, here on this site or another, a list of currently available substitute parts for radios such as the older Galaxy/Ranger radios and others?

For example, the 2SB754. A list showing all the possible substitutions that you could use and maybe a voltage/wattage/gain listing for said parts?

I believe you can use the 754, 817, TIP36, TIP147 and the list goes on. And this is just the first part that came to mind, I’ve been up all night and my mind is fried right now. But I’m talking about all the transistors or at least the major ones replaced/upgraded in those and current radios.

If there isn’t such a list, can we start one? Like one list maybe edited in the first post or something so you don’t have to read through a 40 page thread to find them all.
 
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When dealing with subs, the radio makers' have the upper hand - some factory will make a "lot" - a set number of parts. Checked good but nothing standardized, right off their dies for fast cash to keep the company afloat. So the brand-name sends someone out to look for fresh parts to replenish their bins - types in Hfe breakdowns - PNP or NPN - gets back a ton of PDF's to wade thru - until their Email pops in with a "L@@K HERE - Cheap Parts - CHEAP" so as they look it over and call the server techs to rebuild their firewall - they make a call to the "foreign" manufacturer and 500,000 PNP 25A 100V TO-220 impossible to find elsewhere parts are shipped on a cargo container right to their doorstep.

'Hi Honey, we're home! What's for dinner?'

"Shut up and start building!" is the gruff replay...

What doesn't get used in 3 years, gets sold off to NTE...

See:AMORTIZATION
 
Tallman said:
https://www.ntepartsdirect.com/ENG/PRODUCTLIST/SEMICONDUCTORS_TRANSISTORS_RF?utm_source=bing&utm_medium=cpc&utm_campaign=Search - NTE Parts Direct - JF&utm_term=rf transistor&utm_content=Semiconductor: Transistor - RF

http://www.electronicrepairguide.com/transistor-replacement.html

Is this okay?
Click to expand...

I will check it out but I was hoping for a list in this thread. I figured maybe it would be useful, maybe it was because if my lack of sleep. Two days without sleep has an effect on you. It’s about time to crash now I believe.
 
I believe the price alone is good enough to avoid that one. Not real sure about their replacement for the 2166/1969/2312 either, one part to cover all 3? NTE236...
 
NTE is a "replacement part supplier"
The problem with NTE is how they acquire those "replacements"

You really don't know what it is that your getting.
That's scary to a designer. I won't touch it.
 
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Years ago we had a parts supplier who did his own "reverse cross reference" with the ECG/NTE remarked parts.

He would figure out the generic OEM number that best matched that NTE and sell it to you for half the price on the NTE price list. Naturally he was still making a good markup that way.

Just showed what sort of markup was behind the NTE price.

Then again, this just reflects the costs of printing that phone-book size cross-reference book, scraping off the OEM number from the part, printing the new NTE number on it, and printing the heat-sealed bag that it came in.

But R-K Distributing is history now, along with every other supplier who catered to consumer-electronic repair shops.

73
 
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