Available Now....
TU-8800 $1185 (stock version)
TU-8800 $1,785 (Lundahl Version)
Takman REX50G 2% Carbon Resistor (85 PCS) $65.00
Mundorf Supreme Silver Gold 0.01 X 2 + 0.1 X 2 $150
Gold Lion - Matched Pair KT88 X 2 + 12AT7/B739 X 2 $185
TKD 2CP601S $65
The Lundhal + PCB + HV + Hardware is $645
https://www.diyaudio.com/forums/elekit/353407-inexpensive-tube-set-tu-8800-a.html#post6177418
● Rated output: 12.5W + 12.5W (KT88-HIGH mode / UL connection THD 10%)
● Rated input: 360mV
● Residual noise: 90μV (IHF-A)
● Frequency characteristics: 12Hz to 55kHz (-3dB)
● Input impedance: 50kΩ
● Output impedance: 4 to 6.3Ω, 8 to 16Ω (switched by the switch on the back)
● Input terminal: LINE x 2 (LINE1, LINE2): RCA jack 3.5mm stereo mini jack (uses both LINE2 and cuts LINE2 when plugged in)
● Output terminal: Speaker output terminal: Gold-plated screw terminal (banana plug can be used) Headphone terminal: 6.3mm headphone jack
● Power supply voltage: AC120 / 200V 50 / 60Hz (3P inlet)
● Power consumption: 95W
● Body dimensions: W350 x H204 x D324mm (including protrusions)
● Body weight: approx. 12kg (without power cord)






IT SHOULD BE 7581 (NOT 7591)


OPTION: Lundahl OPT




TU-8800 $1185 (stock version)
TU-8800 $1,785 (Lundahl Version)
Takman REX50G 2% Carbon Resistor (85 PCS) $65.00
Mundorf Supreme Silver Gold 0.01 X 2 + 0.1 X 2 $150
Gold Lion - Matched Pair KT88 X 2 + 12AT7/B739 X 2 $185
TKD 2CP601S $65
The Lundhal + PCB + HV + Hardware is $645
https://www.diyaudio.com/forums/elekit/353407-inexpensive-tube-set-tu-8800-a.html#post6177418
● Rated output: 12.5W + 12.5W (KT88-HIGH mode / UL connection THD 10%)
● Rated input: 360mV
● Residual noise: 90μV (IHF-A)
● Frequency characteristics: 12Hz to 55kHz (-3dB)
● Input impedance: 50kΩ
● Output impedance: 4 to 6.3Ω, 8 to 16Ω (switched by the switch on the back)
● Input terminal: LINE x 2 (LINE1, LINE2): RCA jack 3.5mm stereo mini jack (uses both LINE2 and cuts LINE2 when plugged in)
● Output terminal: Speaker output terminal: Gold-plated screw terminal (banana plug can be used) Headphone terminal: 6.3mm headphone jack
● Power supply voltage: AC120 / 200V 50 / 60Hz (3P inlet)
● Power consumption: 95W
● Body dimensions: W350 x H204 x D324mm (including protrusions)
● Body weight: approx. 12kg (without power cord)






IT SHOULD BE 7581 (NOT 7591)


OPTION: Lundahl OPT



Last edited:
$1185
Tungsol Tube set $125
Thanks. Will be watching this closely. Have wanted to make the jump to build a full fledged tube amp and I've been impressed by the Elekit package.
Viktor,
This looks great! What is the cost of the Lunhaul upgrade? Are there capacitor upgrade options? I'm very excited about this.
This looks great! What is the cost of the Lunhaul upgrade? Are there capacitor upgrade options? I'm very excited about this.
The Lundhal + PCB + HV + Hardware is $645
YOU can use ALPS R27 and TKD with conversion PCB
YOU can use ALPS R27 and TKD with conversion PCB
Last edited:
I'm waiting for this to be released, especially with the Lundall transformer upgrades. I have a TU-8200 I built years ago and it just doesn't have quite enough oomph for my liking. This looks much like a TU-8200 on steroids.
@vkung - Is there a list I can get on to order one as soon as they're available?
@vkung - Is there a list I can get on to order one as soon as they're available?
With all due respect
to you and especially Mr. Fujita, the 7591 has a different pin-out than almost all other power tubes. Plugging a 7591 into an amp that's stet up for 6V6, 6L6, EL34 etc. could do damage. See the attached basing diagrams.
With regards, Steve
to you and especially Mr. Fujita, the 7591 has a different pin-out than almost all other power tubes. Plugging a 7591 into an amp that's stet up for 6V6, 6L6, EL34 etc. could do damage. See the attached basing diagrams.
With regards, Steve
Attachments
Hi Victor,
I believe Steve is correct about the pin compatibility. According to [1], pin 5 on 7591 is k,g3 and according to [2], pin 5 on KT-88 is g1. I don't know if 7581 [3] was intended, but does seem to be pin compatible.
[1] - 7591, Tube 7591; Rohre 7591 ID3729, Beam Power Tube
[2] - KT 88, Tube KT88; Rohre KT 88 ID19153, Beam Power Tube
[3] - 7581, Tube 7581; Rohre 7581 ID6179, Beam Power Tube
I believe Steve is correct about the pin compatibility. According to [1], pin 5 on 7591 is k,g3 and according to [2], pin 5 on KT-88 is g1. I don't know if 7581 [3] was intended, but does seem to be pin compatible.
[1] - 7591, Tube 7591; Rohre 7591 ID3729, Beam Power Tube
[2] - KT 88, Tube KT88; Rohre KT 88 ID19153, Beam Power Tube
[3] - 7581, Tube 7581; Rohre 7581 ID6179, Beam Power Tube