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Old 7th July 2018, 02:32 PM   #1291
sontero is offline sontero  Italy
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Quote:
Originally Posted by Frank40 View Post
I would not be too worried about an offset in the region of 100mV, it will only dissipate 1.25mW in a 8 ohm speaker.
I would test with expendable speakers of little cost ..... before risking the removal of the output cap
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Old 11th July 2018, 02:32 PM   #1292
Little_Eddy is offline Little_Eddy
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Originally Posted by xrk971 View Post
If you want a very nice high current, low distortion choke that can provide the measured data shown a few pages above, do a search on eBay for a MOT part number "MD-803AMR-1". These measure about 67mH and 0.47ohm DCR.
Coming late to this but always on the hunt for a bargain.

In the UK I have found some MOTs reference MD-803EMR-1. I take it that the specifications are unlikely to be significantly different to the US one above and could well suit this project?

Also if I can get hold of 4, would it be safe to assume that a slightly higher supply voltage to offset the additional dc resistance of two of these in series might be beneficial, or is little sonic improvement likely with double the inductance?
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Old 11th July 2018, 02:44 PM   #1293
vitalstates is offline vitalstates  United Kingdom
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Quote:
Originally Posted by Little_Eddy View Post
Coming late to this but always on the hunt for a bargain.

In the UK I have found some MOTs reference MD-803EMR-1. I take it that the specifications are unlikely to be significantly different to the US one above and could well suit this project?

Also if I can get hold of 4, would it be safe to assume that a slightly higher supply voltage to offset the additional dc resistance of two of these in series might be beneficial, or is little sonic improvement likely with double the inductance?
Hi Mike

if that doesn't work out I have 2 hammond 159zc from the mofo you saw at Owston. They won't be doing anything as I'm concentrating on the pp amp. let me know if interested.
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Old Yesterday, 07:39 PM   #1294
vdi_nenna is offline vdi_nenna  United States
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Almost got it. Didnt quite nail it.
It's etched. Need to sand it down again.
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