A very nice and clean LR Phono build that I finished recently.
I used a Linear Audio SilentSwitcher with external D battery back.
Based on my rough calculation, that should be good for about 80hrs (for 4 batteries)
You can also use a 5V wall-wart instead with the SS.
Vampire RCA sockets and nice vintage brass binding post.
Unit is in a compact chassis by Landfall Systems.
Sold as described above $450 shipped (over $70 less than parts)
I can also offer this without the SilentSwitcher for you to provide your own ±15V PSU, for $370.
* I have a ±15V AMB sigma22 with Triad shielded toroidal transformer which can be used as an external PSU.
Build costs:
* PCB -- $41
* Inductors -- $127
* OpAmps -- $64
* BOM -- $82
* Chassis -- $98
* SilentSwitcher -- $88
* Battery pack case -- ~$20
* Total -- >$520
I used a Linear Audio SilentSwitcher with external D battery back.
Based on my rough calculation, that should be good for about 80hrs (for 4 batteries)
You can also use a 5V wall-wart instead with the SS.
Vampire RCA sockets and nice vintage brass binding post.
Unit is in a compact chassis by Landfall Systems.
Sold as described above $450 shipped (over $70 less than parts)
I can also offer this without the SilentSwitcher for you to provide your own ±15V PSU, for $370.
* I have a ±15V AMB sigma22 with Triad shielded toroidal transformer which can be used as an external PSU.
Build costs:
* PCB -- $41
* Inductors -- $127
* OpAmps -- $64
* BOM -- $82
* Chassis -- $98
* SilentSwitcher -- $88
* Battery pack case -- ~$20
* Total -- >$520
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