Enough time has lapsed where at least a few of us will have built this 'universal tube preamp'. If you have, please share your impressions and experience with the rest of us.
Yours plays better than this.
https://www.musicdirect.com/equipment/amplification/preamp/icon-audio-la5-tx-tube-preamp/
I used this source https://www.aliexpress.com/item/100...order_list.order_list_main.179.1e4d18028KRdjf
https://www.musicdirect.com/equipment/amplification/preamp/icon-audio-la5-tx-tube-preamp/
I used this source https://www.aliexpress.com/item/100...order_list.order_list_main.179.1e4d18028KRdjf
I first used this recommended SMPS, it was very noisy and a piece of junk, don’t bother.
https://www.aliexpress.com/item/1005001407107303.html
Then I used a conventional linear psu and this preamp board sings beautifully.
https://www.aliexpress.com/item/1005001407107303.html
Then I used a conventional linear psu and this preamp board sings beautifully.
Yes linear is better.
I have no noise with this
https://www.aliexpress.com/item/100...order_list.order_list_main.179.1e4d18028KRdjf
I have no noise with this
https://www.aliexpress.com/item/100...order_list.order_list_main.179.1e4d18028KRdjf
I should know in the next couple of weeks.
Some resistors I put on the other side. I like the idea of the warmer resistors to be on the top of the pcb instead of under.
Some cotton I have to remove I see from the pics.
Some resistors I put on the other side. I like the idea of the warmer resistors to be on the top of the pcb instead of under.
Some cotton I have to remove I see from the pics.
"I first used this recommended SMPS, it was very noisy and a piece of junk, don’t bother ...."
"Then I used a conventional linear psu and this preamp board sings beautifully."
Vunce, are you able to share the details of the linear power supply that you are using?
I posted my setup back in 8/22, there are several posts and then a spin-off power supply was created/revised. Not sure if that one got built and verified to work correctly.
I believe the eBay member is HVForless that the psu board I used was originally created by.
https://www.ebay.com/itm/1448178644...ar=444066039022&widget_ver=artemis&media=COPY
I believe the eBay member is HVForless that the psu board I used was originally created by.
https://www.ebay.com/itm/1448178644...ar=444066039022&widget_ver=artemis&media=COPY
Vunce said' "I posted my setup back in 8/22 ..."
Could you please point me at your 8/22 reference. Sorry but I cannot seem to find it on my own.
Could you please point me at your 8/22 reference. Sorry but I cannot seem to find it on my own.
https://www.diyaudio.com/community/...8-etc-mu-follower-or-srpp.388295/post-7096123Could you please point me at your 8/22 reference. Sorry but I cannot seem to find it on my own.
Dear Koifarm. If you got any PCB,s I will buy two. Thxs Shipping to Melbourne, Australia. Await a quote, email; peter.gay@gmail.comI have three PCB's to share for just the shippingcost. If interrested send me a PM.
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