Dan - I just got this 30 year old EPROM reader up and running and was able to get data off all 4 mask ROMS. I diff'd them against what's on the Tek Wiki, and only saw differences on U210

This patent refers to the 2N5947 and the PT5707 only as examples of devices with limitations that the invention avoids, and what the effect is of using the two part numbers in a discrete

Rajesh, the issue here is the mystery of what's inside Albert's transistor. The typical RF transistors in this package style have two emitter leads, but they are tied together inside, so there is

" Then I set the TDS3034C into average measuring mode (since it transfers the measured data to the computer very slowly)" With Agilent VISA and GPIB, I acquire data all the time from my TDS3052 scope

I cheated and removed the o-rings in the end. I have no requirement for environmental sealing for this connector, and nothing around it is sealed, so I decided they were just going to make assembly

Ok. There are lots of darlington monolithic microwave amplifiers, I guess we shouldn't be surprised that tektronix was an early adopter. I gotta stop replying to threads where I haven't been

Hi Ed, Sorry I didn't read this message before I commented your other. So at least somewhere that Darlington structure has been mentioned. Albert

Hi Chuck, For E2 the drop Vbe *is* twice a junction drop, about 1.5 V. The only difference with the usual Darlingtons is that here the internal emitter-base joint has a lead to the outside, with

Please remember, Ed and others, that the 151-0614-00 was the successor of the type(s) you are discussing. It seems that this new type was produced solely by Tektronix and that nowhere any mention of

I think Albert has a misunderstanding about what you should measure emitter to base in the case of a silicon darlington transistor. Darlingtons have two base-emitter junctions in series from the two

A sure sign of too many layers of bureaucracy Steve

The datasheet I shared earlier shows two emitters in the pin-out. No further info. I checked the data for MM8012, The same there too - two emitters in pinout, but no other details on the 2nd

Well, there you go Albert. Jacques has the right info, and every other data seem to confirm it's a regular RF power transistor, regardless of how many emitter connections it has. So, if you're still

I have the Motorola Data Sheets for the 2N5947 in my 1974 Semiconductor Data Library Books. It was formely produced as the MM8012. A broadband low distortion, low noise figure silicon

Oops - I do remember seeing that datasheet, but it has no detailed info about having separate emitters. The test circuits shown have only one emitter connection. I got the 2N5947 part number right off

2N5947 Datasheet - If this is what you are looking for. http://pdf.icpdf.com/PdfOld/icpdf_datasheet_9/2N594_datasheet_9803/162246/2N594_datasheet.pdf Regards Rajesh yahoo.com@groups.io> wrote: --

I have the full spec sheet in an old copy of the Motorola Small Signal Transistor Data Book. It doesn't look all that special to me. Definitely not a darlington. It has a VBE sat that ranges from

Part of the schooling for junior engineers at Tek was strong encouragement to use the Common Design Parts Catalogs. I think I was told it cost $10000 of overhead to add a new part, so if you asked

Well, this keeps getting curiouser and curiouser. The other day I did some searching on the 2N5947 (apparently the original Q190), and found no data, but it seems to have been pretty common in the

200 quid? Don't shop for these at the aerospace pharmacy! :-) I got some of these connectors on ebay for a lot less when attached to a surplus cable that the seller didn't know what it was good