rock soderstrom
Tour de France
Hi guys,
modern switched-mode power supplies are slowly arriving in my lame tube audio world. Lately, I've been trying to question my cherished habits and take a different approach to realizing my projects.
Out of curiosity, I bought two of these DC/DC up converter boards on aliexpress.
https://de.aliexpress.com/item/1005...t_main.11.21ef5c5fshABJR&gatewayAdapt=glo2deu
As supplied, these boards can convert over 38V from 9V. The promised 52V can only be achieved after a feedback resistor hack.
52VDC minus some filtering makes good 48V?
What do you think, are such boards suitable for obtaining a clean phantom voltage from lets say the heater voltage (or a separate DC voltage)?
Could you heat an unusual single tube (P or U tubes) with these boards to operate them with other conventional E-tubes?
...or would it be better to stay away from such solutions, as they contaminate everything in their vicinity with HF noise?
20mV/5muS per division, Vout=24V
What do you think? Does anyone have experience with this?
PS: I'm a beginner with this stuff and have almost no experience with it. So, dear experts, bear with me. (Yes, you too Khron
)
modern switched-mode power supplies are slowly arriving in my lame tube audio world. Lately, I've been trying to question my cherished habits and take a different approach to realizing my projects.
Out of curiosity, I bought two of these DC/DC up converter boards on aliexpress.
https://de.aliexpress.com/item/1005...t_main.11.21ef5c5fshABJR&gatewayAdapt=glo2deu
As supplied, these boards can convert over 38V from 9V. The promised 52V can only be achieved after a feedback resistor hack.
52VDC minus some filtering makes good 48V?
What do you think, are such boards suitable for obtaining a clean phantom voltage from lets say the heater voltage (or a separate DC voltage)?
Could you heat an unusual single tube (P or U tubes) with these boards to operate them with other conventional E-tubes?
...or would it be better to stay away from such solutions, as they contaminate everything in their vicinity with HF noise?
20mV/5muS per division, Vout=24V
What do you think? Does anyone have experience with this?
PS: I'm a beginner with this stuff and have almost no experience with it. So, dear experts, bear with me. (Yes, you too Khron
)
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