The No.1 Website for Pro Audio
 Search This Thread  Search This Forum  Search Reviews  Search Gear Database  Search Gear for sale  Search Gearslutz Go Advanced
Siemens U273 and Siemens W293
Old 4th February 2016
Gear Head

Siemens U273 and Siemens W293

Hello fellow slutz,

This is my first post, and I hope I'm in the right place.

I'm working with a tech who's repairing a couple of U273's and W293's for me.
In order for him to proceed with his work, he needs to find equivalent part numbers for the components he has identified as faulty. The tech believes that the Siemens components are numbered uniquely, as his usual avenues of research have failed to turn up equivalents.

I'm wondering if anyone out there can help us. Here's an excerpt from an email I received today:

"...As I mentioned I think that a number of the semiconductor devices in these Siemens products are custom order and hence have unique part numbers.
In the compressor I have managed to find an equivalent for only one transistor: Ts 1 and Ts 2 are quoted as a BCY 66 which has an equivalent part number BC 184.

A number of other devices are Texas Instrument NPN with part numbers SST 116, SST 117, SST 116M and SST 117M which I can't find equivalents.

The high pass filters have a pair of 10 pin op amps with part numbers such as MC 1461R, MC 1554G, SC 5141G which also appear to be unique orders."

I'd be very grateful for any advice and information,

Old 5th February 2016
Gear Maniac

Not sure who the tech is but I would feel a lot more comfortable if it was Rob at Proharmonic in Adelaide.
Old 5th February 2016
Gear Head

Originally Posted by RTG View Post
Not sure who the tech is but I would feel a lot more comfortable if it was Rob at Proharmonic in Adelaide.
Thanks, I get what you're saying, and won't allow any bodge-jobbing. Rob will be my next contact if the local bloke (who's actually very good) throws up his hands.
Old 5th February 2016
Gear Nut
I gues the small Signal Transistors have new numbers because of new manufacturers. try to Google "NPN SST 116 Substitute" you should find possible alternatives, then crosscheck both data-sheets. sometimes can help. i will also check my drawers for your needs...
Old 5th February 2016
Gear Head

Thanks Briczo, I'll try groupdiy
Post Reply

Welcome to the Gearslutz Pro Audio Community!

Registration benefits include:
  • The ability to reply to and create new discussions
  • Access to members-only giveaways & competitions
  • Interact with VIP industry experts in our guest Q&As
  • Access to members-only sub forum discussions
  • Access to members-only Chat Room
  • Get INSTANT ACCESS to the world's best private pro audio Classifieds for only USD $20/year
  • Promote your eBay auctions and listings for free
  • Remove this message!
You need an account to post a reply. Create a username and password below and an account will be created and your post entered.

Slide to join now Processing…
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Forum Jump
Forum Jump