Re: [time-nuts] new op amp for distribution amplifiers

2018-12-15 Thread Dana Whitlow
Has anybody tried the AD8003 (triple video line driver amplifier) for use as distribution amplifiers? It looks to me like this part might be a decent choice. On caveat, however: don't succumb to the temptation to reduce the circuit bandwidth by putting a capacitor across the feedback resistor-

Re: [time-nuts] rf generator/attenuator

2018-12-15 Thread Richard (Rick) Karlquist
I already thought of this. There are two missing components: 1. An ALC output amplifier to get a high, regulated output level. Did you encounter anything like this on EBay? 2. A shielded box for the ADF435X. Rick On 12/15/2018 11:43 AM, djl wrote: See: sv1...@40gmail.com modules to do

[time-nuts] rf generator/attenuator

2018-12-15 Thread djl
See: sv1...@40gmail.com modules to do what you wanted. With a nice oled and arduino, ADF4351=20 35-4400 MHz PLL external or internal 10 MHz reference and a controllable attenuator. Greek modules, not Chinese. Total cost seems to be about $80 or so. I also found modules like these on EBAY for