Hi As I recall, the whole LH series was a multi chip rather than monolithic IC approach. Even back in the day, that made them expensive parts. There are other parts that make fine 10 MHz buffers that only cost a dime.
Bob > On Nov 19, 2014, at 9:00 PM, Jim Lux <[email protected]> wrote: > > On 11/19/14, 3:59 PM, Dave Daniel wrote: >> I remember the "Fast and Damn Fast Buffer Amp" data sheet. LH0036? I may >> not be remembering the correct part number. I used to have a copy of >> that data sheet, as well as another that was labeled "DC to Daylight" on >> the data sheet. >> >> DaveD >> >> On 11/19/2014 2:42 PM, Mike Feher wrote: >>> Hi Doug - >>> >>> Wow. Wonder how many on here remember or know about National's "Damn >>> Fast" line, HI. I used them all the time, and, still have a few. 73 - >>> Mike >>> > > In the 1984 databook (Blue cover with the yellowing fragile newsprint pages) > and in the 1975 databook (yellow and green cover, nice quality paper). LH0033 > and LH0063 are the Fast and Damn Fast buffer amplifiers. In this context the > data sheet says 6000V/microsecond. With +/- 10V into a 50 ohm load (although > you only get 2400 V/us there) > > Last two pages in the 84 book are just blank. Last page in the 75 book is a > description of MIL-STD-883B > > Interesting parts.. They aren't kidding when they say you need good power > supply bypassing and decoupling.(a comment that is in the 84 book but not the > 75 version) I'm trying to remember what I was using them for: driving a YIG > tuning coil in a phase locked loop, I think, but it might have been driving a > fast RF switch. > > > Interesting parts back then.. Does anyone still make or use a LM746 "chroma > demodulator" (other than as a replacement part) or any of the other very > purpose specific parts for parts of a TV? (like LM1845 signal processing, > etc.) > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
