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Changes to the design are needed rather than mere parts selection. I will probably make an Arkless MkII head amp for my own use which can also go out for demo but it would be "cobbled together" in comparison to ones made for customers. This would not effect sound.Quote:
Originally Posted by REXTON
I have no issues with cobbled together. I remember trying your phonostage and writing a very positive review. You've certainly got the talent to produce these things but as I stated sometimes the fun, for the purchaser, is being part of the journey.
As you very much were when I built that speed controller for you:) I encourage customers to have an input into what they receive but it stops short of the actual electronic engineering, ie the design, which for obvious commercial reasons I don't discuss in any detail on public forums. If customers want a particular brand of capacitor fitted etc then I'm fine with that... so long as it is a suitable choice technically of course.Quote:
Originally Posted by REXTON
Quote:
Originally Posted by Arkless Electronics
Fair point old bean. ;)
Just out of interest, does anyone have any idea how gain the Lentek generates?
ok, its 28db!
ok, looks like a have a few components as contenders for my Lentek modifications, so a few basic specs
1. Charcroft audio silver mica capicators
2. Yannis tome 222 IC
3. WBT-0110Ag Signature RCA's
4. wbt-0210ag topline RCA sockets
5. Charcroft z or S seris resistors
6. Maybe a new case.
I want to try and increase gain if possible with resistor value tweaks. Looks like it's going to stay battery powered as I dont really want a complete redesign of the whole head amp to get a very noise free, floating power supply. Apart from that it looks like a fairly standard refurb of the innards with better quality componets.
just to revive this great thread,
i now have 2 lenteks,one standard 'as they come' and one to mod.
this evening i set about removing all the potting,the pcb is incased in a block of white silicone,after an hour of picking and cutting its all gone.
pic 1 is the what we see when the plastic cover is cut off.
https://s26.postimg.org/ledwba4mx/IMG_1919_1.jpg
an hour later.....
https://s26.postimg.org/w17pgysah/IMG_1921_1.jpg
and here's a pick for people with more knowledge than me of the pcb and tracks going to the components.
https://s26.postimg.org/4dv02meqx/IMG_1923_1.jpg
so my plan is to replace the caps with high quality ones 1 at a time and compare against the standard one,also on the cards is making a bigger box for it and replace the rca connectors and cable/plugs.
any advice on components/values etc is more than welcome :)
just reading through this thread and i noticed there appears to be at least 3 versions on the lentek,in the alans post above the second picture shows a mk3 pcb,mine has mk2 printed on it,Quote:
Originally Posted by 337alant
https://s26.postimg.org/n0glj9u61/IMG_1924_1.jpg
just reading through this thread and i noticed there appears to be at least 3 versions on the lentek,in the alans post above the second picture shows a mk3 pcb,mine has mk2 printed on it,Quote:
Originally Posted by 337alant
https://s26.postimg.org/xaj0iozix/IMG_1924.jpg