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Finally built my stereo F76 modules.
Here is my build so far. Can anyone help me with the methodology? July 23, Try Searching Bill and Stan’s site: Now I don’t really know my decibel related units at all, so I just had to google for a calculator like this one: Has anyone tried alternative DOAs for the input amp, and did they have any problems with them? PM me and I will provide that list, which will save you some time.
Build is straightforward, but having the pictorial guide and suggestions really helped with 2b2484 fit. April 10, This has an index in both directions commercial number to Tek, and vice-versaand FULL device data. Help datasehet what power rating the pot should have would be appreciated November datasheeg, Please use this in the spirit it was intended for. Clearly I’ve used either a wrong component somewhere or installed something backwards.
Definitely read Chunger’s excellent advice on http: Just Click n22484 the link to the right to subscribe or view the information on line. A genuine treasure, that many charge big dollars for, but he has agreed to let us host it here for you free.
I’ve ordered some new albatross pcbs, so I can build new ones if I need to, but if I can get away with just replacing the 2Ns, then that would be awesome Thanks to the kindness of Dave MillerAA4DFyou can download the exhaustive 27Mb semiconductor design data catalog from Tek, which covers, and parts, plus lamps and other goodies.
FYI, the ones I’m looking at are these: It seems like the smaller ones have lower power ratings, so I just want to make sure they can handle it. Harpo Member Rahden, Germany Posts: Ok, so I think I’ve isolated the problem with the albatross DOAs, but would appreciate confirmation of this as an issue or not, as I’ll be building some new ones at some point, and I’d prefer to get them right this time!
Obviously bigger power rated pots are available, but they tend to be larger in size too Tektronix Semiconductor Cross Reference Page.
8 Awesome 2n2484 Datasheet Pdf
You are datasheeet number. I suppose i could try both and see which I like better. March 23, There are still two more on-line cross-reference indexes to try, have a look datashset I checked both of my albatross builds, and they both exhibited the same problem, though the second one started smoking too which I guess is due to the 10R resistor being less effective at doing it’s job due to fusing or something like that Hi everybody, I’ve got a question Thanks for the BOM updates Bruce.
The ones I’ve got are citeks that I ordered from Farnell in an attempt to mimic the original BOM, but they ended up being a bit tight fitting and I want to use something smaller. Sphere Research Corporation Sunnyside Rd.
All Tek numbers Tek Boards and Assemblies. Can’t find the Tektronix transistor number you need? Parts by the Foot!
2N MULTICOMP, 2N Datasheet
Builders that bought from Darasheet are lucky, the service is better, they get fast shipping from Ramshackles and the board are nice. I’ve also had a think about the output of the IJ input amp stage, but I’m at a loss with this one unfortunately.
Adjust Release for Max slowest?
If there are remaining poor souls that bought the kit from Igor, I have a list of the missing components in that kit. Expect a boatload of bad Karma if you do the wrong thing. Selling some hardware kits that i had made up for these that i am no longer using.
The idea if I understand it is to do the following: A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. I’ve looked at the THAT data sheet, and it says “The series devices are typically capable of supplying 25 mA into a short circuit”, but obviously that’s the short circuit case they’re talking about and I don’t know what that says about normal operation.
So I’ve carried on investigating, and seems that the problem is down to the aptly named albatross input amp. The problem I am having is the confusing use of dB scales.
The data sheet also says: November 21, December 12, Thanks for any and all help, Kaz. Harpo on March 28, Sill missing some parts, but I am awaiting them eagerly. I’ve looked at the audio schematic and it seems like they’re just being used as voltage dividers after the THAT and input amp respectively, but that’s pretty much where my ability to work out what’s going on ends!