Metropoulos Forum

can they be swapped straight out for el34s with just a bias revision, or is that a different tranny?

el34s can be swapped in if you rebias

edited bill of materials:

1 x Carbon Film 10K Ohm Qty 10 () = $1.00
Quantity 10 + $0.00
1 x Carbon Film 15K Ohm Qty 10 () = $1.00
Quantity 10 + $0.00
2 x Metal Oxide 8.2K 2 Watt () = $1.00
2 x Fuse .5 Amp Fast Acting () = $1
1 x 66 Era 45/100 Bare Bones Chassis Kit (45/100BBKIT) = $575.00
Choke None + $0.00
Components None + $0.00
Head Case Black with Vox style vents + $350.00
Output Transformer None + $0.00
Power Transformer None + $0.00

4 x Xicon 1K 5 Watt Resistor () = $2.00
5 x Amphenol 8 Pin Octal Socket () =
1 x Carbon Film 5.6K Ohm Qty 10 () = $1.00
Quantity 10 + $0.00
7 x Diode 1000PIV 1A () = $1.05
1 x Plexi, JTM 45 Bias Adjustment Kit () = $2.00
1 x Silver Mica 100pf @ 500V () = $0.75
1 x Capacitor-Ceramic Disk 100pf () = $0.25
2 x Allen Bradley NOS 1/2 watt CC 1K () = $2.00
2 x Metal Oxide 10K 2 Watt () = $1.00
1 x Sozo "Mustard Type" .047uf 400V () = $2.10
1 x CTS 250K Audio () = $4.50
1 x CTS 25K Linear () = $4.50
3 x CTS 1M Audio () = $13.50
1 x CTS 5K Linear () = $4.50
4 x Metal Oxide 1 Ohm 1 Watt () = $2.00
1 x Silver Mica 47pf @ 500V () = $0.75
2 x Silver Mica 250pf @ 500V () = $2.00
1 x Capacitor-Ceramic Disk 560pf () = $0.50
2 x Silver Mica 500pf @ 500V () = $2.50
3 x 9 Pin Socket with Shield () = $13.50
1 x Flush Mount Fuse Holder () = $2.00
1 x TAD 16uf @ 475V Axial () = $3.00
2 x Xicon 10uf @ 160V () = $2.40
2 x Chrome Ring for Toggle Switches () = $8.00
1 x Amber 120V Neon Indicator () = $9.00
2 x Toggle Switch - DP/ST () = $18.00
1 x Fuse Holder () = $2.85
1 x Metroamp 12 Foot IEC Power Cord () = $7.00
1 x Strain Relief () = $0.40
6 x Marshall Cliff Old Style In/Out Jack () = $15.00
1 x Brass Mounting Bolt Small Qty 12 () = $1.50
1 x Brass Mounting Bolt Medium Qty 12 () = $2.00
1 x Marshall Impedance Selector Switch () = $28.00
1 x Brass Mounting Bolt Large Qty 12 () = $4.50
1 x Marshall Set Screw Knob Qty 8 () = $15.00
1 x Wire- Full Amp Kit () = $16.00
1 x Allen Bradley NOS 1/2 watt CC 470k () = $1.00
1 x Allen Bradley NOS 1/2 watt CC 27k () = $1.00
2 x Allen Bradley NOS 1/2 watt CC 270k () = $2.00
4 x Allen Bradley NOS 1/2 watt CC 1M () = $4.00
1 x Carbon Film 1M Ohm Qty 10 () = $1.00
Quantity 10 + $0.00
1 x Carbon Film 82K Ohm Qty 10 () = $1.00
Quantity 10 + $0.00
1 x Carbon Film 100K Ohm Qty 10 () = $1.00
Quantity 10 + $0.00
1 x Carbon Film 150K Ohm Qty 10 () = $1.00
Quantity 10 + $0.00
1 x Carbon Film 47K Ohm Qty 10 () = $1.00
Quantity 10 + $0.00
1 x Carbon Film 220K Ohm Qty 10 () = $1.00
Quantity 10 + $0.00


ADD:
bracket frame
ground logs
voltage selector
output transformer (1202-84),
power transformer (1202-43),
choke (3h, 5h or 20h)

signal caps: sozo standard or premium – see layout for values