When a Luxman clone is not a clone

[gaborbela]

mjona

I sent you a PM

Greetings gabor

 

[PB2]

@carlmart Any update? You're doing a nice job on this.

 

[carlmart]

Hi carlmart. How is the project going along?
Cheers!

Sorry, didn't see this question from you. Here are some updates.

The project is going fine, finishing final details on the BOM.

Also opened a thread on what power supply to use for the low current stages.

Using the LM317 with higher voltages

My original intention to use 3X7 regulators at higher voltages than what they were designed for, changed after the suggestions I got. Very interesting reading and findings, with sims and all.

But I'm also considering assembling the L10 clone for the prototype, instead of the 5M21, because it adapts better to the eBay PCB I was going to use.

 

[PB2]

Do you have a link to the ebay PCB?

 

[carlmart]

It's Aliexpress, not eBay. Sorry for that. Here's the link for two pcbs.

pcb mono amplifier board goldmund tube 2sa1943 2scC5200 output adjustable A discrete goldmund rear amplifier Free Shipping-in Amplifier from Consumer Electronics on AliExpress

Compare the schematic with that of the Luxman L10 and you will see they are practically identical.

 

[PB2]

It's Aliexpress, not eBay. Sorry for that. Here's the link for two pcbs.

pcb mono amplifier board goldmund tube 2sa1943 2scC5200 output adjustable A discrete goldmund rear amplifier Free Shipping-in Amplifier from Consumer Electronics on AliExpress

Compare the schematic with that of the Luxman L10 and you will see they are practically identical.

Thanks, interesting.

 

[carlmart]

It's a pretty quick way to prototype an amp or even just build one.

 

[analog_sa]

L10 looks like some cute collectible midfi. What makes its circuit desirable?

 

[carlmart]

It was considered at the time of its release, and it's still considered today by many, one of the best sounding amplifiers of its time. And it still is.