Search found 5487 matches
- Sat Jun 14, 2014 10:44 pm
- Forum: Solid State
- Topic: AD797 OPAMP input to a grounded grid valve stage question
- Replies: 12
- Views: 9115
Off the top of my head, the output of the 797 will not like this - in this configuration, it will be continually trying to compensate for the output offset - I suspect that it'll just get hot and be unhappy. I've used the 797 in a number of applications (metal detectors, ultra-low-noise amps, my Qua...
- Fri Jun 13, 2014 12:59 pm
- Forum: Buying and Selling
- Topic: wanted - quad405
- Replies: 8
- Views: 4767
- Thu Jun 12, 2014 2:51 pm
- Forum: Assorted Stuff
- Topic: Grid Energy
- Replies: 32
- Views: 15186
- Tue Jun 10, 2014 10:11 am
- Forum: Assorted Stuff
- Topic: NEXT DIY MEET 7/8 JUNE 2014
- Replies: 226
- Views: 85732
- Tue Jun 10, 2014 8:40 am
- Forum: Assorted Stuff
- Topic: LDR pre amps are the future...
- Replies: 119
- Views: 49705
- Tue Jun 10, 2014 8:14 am
- Forum: Assorted Stuff
- Topic: LDR pre amps are the future...
- Replies: 119
- Views: 49705
The famous/classic Jim Williams AN43 0.0003% (3ppm) Wien Bridge sine wave oscillator design (page 29 onwards) uses Vactec VTL5C10 or Clarex CLM410 photocouplers - the LDR is a cadmium sulphide cell and is not very linear or repeatable as they say. I've built this design and use it for very pure tone...
- Mon Jun 09, 2014 10:47 pm
- Forum: Assorted Stuff
- Topic: steptoes preloved stuff
- Replies: 5
- Views: 2689
- Mon Jun 09, 2014 9:30 pm
- Forum: News
- Topic: Rik Mayall RIP
- Replies: 6
- Views: 5025
Rik Mayall RIP
Very sad. The Dangerous Brothers were my role models...
- Sat Jun 07, 2014 9:09 pm
- Forum: Assorted Stuff
- Topic: NEXT DIY MEET 7/8 JUNE 2014
- Replies: 226
- Views: 85732
- Fri Jun 06, 2014 2:03 pm
- Forum: Assorted Stuff
- Topic: NEXT DIY MEET 7/8 JUNE 2014
- Replies: 226
- Views: 85732
Either, a) drive a 500-mile round trip and drink a lot of beer, or, b) walk up to the village and drink a lot of beer.Mike H wrote:Your social calendar is too full. Prioritise. Top tip that.
Decisions, decisions...
Note: Yes, I know there aren't any audio types at the fete, but its a *lot* closer...
- Fri Jun 06, 2014 10:22 am
- Forum: Assorted Stuff
- Topic: NEXT DIY MEET 7/8 JUNE 2014
- Replies: 226
- Views: 85732
- Fri Jun 06, 2014 9:32 am
- Forum: Assorted Stuff
- Topic: Nothing In Particular
- Replies: 16439
- Views: 4663887
- Thu Jun 05, 2014 6:20 am
- Forum: Assorted Stuff
- Topic: Nothing In Particular
- Replies: 16439
- Views: 4663887
- Fri May 30, 2014 3:15 pm
- Forum: Assorted Stuff
- Topic: Nothing In Particular
- Replies: 16439
- Views: 4663887
Try a bit of variety by getting your life in order: beer, cake, cheese, cheesecake, pies, rolls, wine.......Mike H wrote:This week's shopping list ~ disturblingly similar to last week's ~ and the week before that ~ and the week before that ~ wine, beer, cake, cheese, cake, rolls, cheesecake, pies....
- Fri May 30, 2014 3:06 pm
- Forum: Assorted Stuff
- Topic: I'm Officially a Fat Bastard
- Replies: 362
- Views: 129109
Taking this seriously now - lost 2kg in last 8 days. Target is to lose between 10 and 11kg in three months. Starting: 104.7kg Today: 102.6kg Also reduced to 1 cup of caffeinated substance a day - I was drinking 4-5 BIG mugs (those huge French things) a day. Down to just one ordinary cup. Going on a ...