Re: another finished project
I like the input selector switch to make it a complete integrated amplifier.
any chance of ordering 4 sets from you? (I sent you a private email but without the input selector switch), but now I am very interested with 3 way input selector.
gychang
ArjenShenzhen said:This is the one i use for my laptop at my home
also a small switching power supply 2 A 12 volts 110 ~ 220 volts input
The PCB i put online, a alps blue potmeter, ( about 60 RMb here ) i put a big 22000 uF cap over the power input
and selector switch for 3 inputs.
this one my GF calls the " zhou bidze " Pigs Nose....
i must admit, there is some resemblance haha
I like the input selector switch to make it a complete integrated amplifier.
any chance of ordering 4 sets from you? (I sent you a private email but without the input selector switch), but now I am very interested with 3 way input selector.
gychang
Ampss
Hi there,
Im working on some cool stuff now, new housing for my own amp using my own PCB's.
i might sell it also if there is interest for it. i want to make something like i have running now, a TA2020 MKIII with my valve amp ( running 24/7 now in test phase ) and a SMPS to power it. and i add 2 VU meters for fun
ill show a photo.
Greetings!
Arjen
Hi there,
Im working on some cool stuff now, new housing for my own amp using my own PCB's.
i might sell it also if there is interest for it. i want to make something like i have running now, a TA2020 MKIII with my valve amp ( running 24/7 now in test phase ) and a SMPS to power it. and i add 2 VU meters for fun
ill show a photo.
Greetings!
Arjen
Attachments
Hello Arjen!
Which tripath chip is inside this amp on last two posts and how much will be the price range if you decide to sell them?
Which tripath chip is inside this amp on last two posts and how much will be the price range if you decide to sell them?
Amps
Hi there,
This amp can be equipped with TA2020 or TA2024, witch ever you prefer
the price indication is around 120 Euro, i hope i can get that price down, but it depends on quantity and my negotiation skill in Chinese ;-)
for that you get a fully finished amp with 3 channels input valve pre-amp, MKIII board and 3.5A SMPS powersupply inside.
i hope it will be done around 2 weeks from now.
Greetings!
Arjen Helder
Hi there,
This amp can be equipped with TA2020 or TA2024, witch ever you prefer
the price indication is around 120 Euro, i hope i can get that price down, but it depends on quantity and my negotiation skill in Chinese ;-)
for that you get a fully finished amp with 3 channels input valve pre-amp, MKIII board and 3.5A SMPS powersupply inside.
i hope it will be done around 2 weeks from now.
Greetings!
Arjen Helder
Hi Arjen,
what kind of preamp you use? CF? Tube? PS voltage?
I like to use your old green boards (modified) with different tubes headphones amps, gain is too much, but I like how it sound.
Zigis.
what kind of preamp you use? CF? Tube? PS voltage?
I like to use your old green boards (modified) with different tubes headphones amps, gain is too much, but I like how it sound.
Zigis.
Re: Amps
Hello Arjen, I've bought your MKII TA2020 and it's the best amp i've got now, really nice sound!! The reference was a Gradiente 4.1 mini system with LM3886, and a Yamaha receiver, but your amp is much better, more open and the the highs, mid and low are much more detailed. Of course, i'm not talking about power, but I hardly need to pass 40-50% my volume.
Can you describe the difference of the sound using or not the valve preamp??
I'll be watching your ebay for new things =D
Thanks in advance!
ArjenShenzhen said:
Hello Arjen, I've bought your MKII TA2020 and it's the best amp i've got now, really nice sound!! The reference was a Gradiente 4.1 mini system with LM3886, and a Yamaha receiver, but your amp is much better, more open and the the highs, mid and low are much more detailed. Of course, i'm not talking about power, but I hardly need to pass 40-50% my volume.
Can you describe the difference of the sound using or not the valve preamp??
I'll be watching your ebay for new things =D
Thanks in advance!
Whelibob,
Yes, i do not sell kits, just fully finished boards.
Zigis, i use a double triode 12AU7 valve for this, the amp was designed for me by a friend that used to design for Siemens ( 20 KW FM transmitters, enz )
Its more a Valve Buffer, it does not amplify, it changes the sound so that it has that tube warmth and smoothness, making the TA amps sound like a valve amp.
the plate voltage is made with a cascade and a NE555 IC, very simple, no noise and a band with or 253 KHZ at -3DB, so, plenty!
the NE555 works at around 40-50 KHZ switching frequency.
the plate voltage is around 40 volts, more than enough since i don't want gain!
the tube board only needs 12 volts, the NE555 works off of that.
Greetings!
Arjen Helder
Yes, i do not sell kits, just fully finished boards.
Zigis, i use a double triode 12AU7 valve for this, the amp was designed for me by a friend that used to design for Siemens ( 20 KW FM transmitters, enz )
Its more a Valve Buffer, it does not amplify, it changes the sound so that it has that tube warmth and smoothness, making the TA amps sound like a valve amp.
the plate voltage is made with a cascade and a NE555 IC, very simple, no noise and a band with or 253 KHZ at -3DB, so, plenty!
the NE555 works at around 40-50 KHZ switching frequency.
the plate voltage is around 40 volts, more than enough since i don't want gain!
the tube board only needs 12 volts, the NE555 works off of that.
Greetings!
Arjen Helder
Arjen,
You should ad a remote with source selecting, volume control and a mute switch, and you'd have the ultimate t-amp on your hands.
I'd buy one instantly.
Btw. Your modded topping amp is very good, I can't thank you enough for it.
cheers:
gyorgy
You should ad a remote with source selecting, volume control and a mute switch, and you'd have the ultimate t-amp on your hands.
I'd buy one instantly.
Btw. Your modded topping amp is very good, I can't thank you enough for it.
cheers:
gyorgy
Arjen,
I have also bought the modded topping (TP-20) and i am very happy with it.
May i suggest you to implement some gain selection circuit at the preamp section?
Waiting to buy the new amp 😎
Greetings...
I have also bought the modded topping (TP-20) and i am very happy with it.
May i suggest you to implement some gain selection circuit at the preamp section?
Waiting to buy the new amp 😎
Greetings...
Arjen,
Any news on the housing for you MKIII amps? I have been waiting patiently for some time, but can't wait much longer.
Thanks!
Any news on the housing for you MKIII amps? I have been waiting patiently for some time, but can't wait much longer.
Thanks!
Arjen,
This Little Beauty Sounds Great!....Thank You!....And that's on a 13.5v 1.8A PS...I'm getting a 14V 4A for it, and was wondering how many Watts it will put out cleanly with that PS? I'm running it into 6" RS 40-1285D Full Range Speakers rated at 14 Watts/ch..So, I'm cutting it a Bit Close...With the 1.8A PS, it Red Lights at 11:00 and is Mighty Loud and getting Better before it goes into Protect...I just don't want to use the 4A Supply and Fry the Radio Shacks...
This Little Beauty Sounds Great!....Thank You!....And that's on a 13.5v 1.8A PS...I'm getting a 14V 4A for it, and was wondering how many Watts it will put out cleanly with that PS? I'm running it into 6" RS 40-1285D Full Range Speakers rated at 14 Watts/ch..So, I'm cutting it a Bit Close...With the 1.8A PS, it Red Lights at 11:00 and is Mighty Loud and getting Better before it goes into Protect...I just don't want to use the 4A Supply and Fry the Radio Shacks...
Last edited:
Hello Arjen!
Is this amp on sale now? 😱
You mentioned a few weeks to be ready in June. 😀
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