Kinku,
ask yourself what is that "input capacitor" required to do?
I'll give you a couple of clues.
Block DC
Pass Audio
ask yourself what is that "input capacitor" required to do?
I'll give you a couple of clues.
Block DC
Pass Audio
Yes,Andrew. I know upto that part. I know in some designs it can form a RC filter too, in that case 1 uf will attenuate some frequencies.
You can easily use 1 megohm resistors to bias the inputs, so .1uF will
roll off at 1.6 Hz. There are some nice Wima polypropylenes for that,
higher values also.
roll off at 1.6 Hz. There are some nice Wima polypropylenes for that,
higher values also.
Working on battery powered B1 Buffer for HIFI2000 Slim Line 2U with LDR potentiometer.
Are following features meaningful:
- footprint for LSK170, LSK389 (TO71) and BF862
- multiple coupling caps footprint (needs suggestions for coupling caps to use)
- switched simple 1AD4 hybrid headphone amplifier
Proposals are wellcome.
JP
Are following features meaningful:
- footprint for LSK170, LSK389 (TO71) and BF862
- multiple coupling caps footprint (needs suggestions for coupling caps to use)
- switched simple 1AD4 hybrid headphone amplifier
Proposals are wellcome.
JP
Attachments
You are using a Sealed led acid battery from pictures.Those noise measurements are from NiCad and Ni Mh batteries. Noise floor from LED cid batteries is not that low.
B1 balance control
I have been using the search function in order to learn more about the possibility of using a balance-control and a stereo potentiometer or attenuator .
What i have found is a consensus that two mono controls will suffice , in some cases a stereo volume control is favoured over the possibility of adjusting balance alltogether . Well , i would like to be able to adjust balance without fiddling with two knobs at the same time . My problem is that i can't seem to wrap my head around how to do the wiring . It is probably very simple , and once i get my nose pointed in the right direction , i'll likely bang my forehead with something heavy . My appologies if this subject has allready been discussed in depth , i just haven't found it yet . Hoping for and thanking in advance for a helping hand ,
cheers
Kim
I have been using the search function in order to learn more about the possibility of using a balance-control and a stereo potentiometer or attenuator .
What i have found is a consensus that two mono controls will suffice , in some cases a stereo volume control is favoured over the possibility of adjusting balance alltogether . Well , i would like to be able to adjust balance without fiddling with two knobs at the same time . My problem is that i can't seem to wrap my head around how to do the wiring . It is probably very simple , and once i get my nose pointed in the right direction , i'll likely bang my forehead with something heavy . My appologies if this subject has allready been discussed in depth , i just haven't found it yet . Hoping for and thanking in advance for a helping hand ,
cheers
Kim
B1 balance control
Thank you Nelson and Kpsthakur for responding 🙂
I have given the matter a lot more consideration and decided to complete the first B1 the way it was concieved by the Maestro . I've had two Khozmo mono attenuators sitting around for the longest time and it would be a shame not to put them to good use . That way i can keep wiring as short and uncluttered as possible as well . That said , i have another Passdiy pcb and fets-kit in the drawer and i 'll use that for further experimentation at a later stage .
I'll try to educate myself more on the subject ; after all i can read a set of line-drawings and a table of offsets and build a boat from there . Darned if i shouldn't be able to figure out some wiring as well 😉
Cheers
Kim
Thank you Nelson and Kpsthakur for responding 🙂
I have given the matter a lot more consideration and decided to complete the first B1 the way it was concieved by the Maestro . I've had two Khozmo mono attenuators sitting around for the longest time and it would be a shame not to put them to good use . That way i can keep wiring as short and uncluttered as possible as well . That said , i have another Passdiy pcb and fets-kit in the drawer and i 'll use that for further experimentation at a later stage .
I'll try to educate myself more on the subject ; after all i can read a set of line-drawings and a table of offsets and build a boat from there . Darned if i shouldn't be able to figure out some wiring as well 😉
Cheers
Kim