PAS3 preamp upgrades, modifications, replacement parts

PHOTO	ITEM #	ITEM DESCRIPTION	KIT	ASSEMBLED
shipping & handling	0	shipping & handling for ALL items please ADD shipping by clicking here only one shipping fee per order! (not for each item)	add $5 for shipping	add $5 for shipping
	1	POWER SUPPLY this replaces the original filament supply circuit (selenium rectifier and two large capacitors), and also replaces the 4 section hi-voltage "quad-cap" with modern capacitors, raising the total B+ storage capacity from 80uF to 266uF, and adds a fuse	$50 kit	$70 assembled
	2	new design REGULATED POWER SUPPLY This option is for the customer who wants the ultimate and final piece of a total PAS3 upgrade. This replaces the original or upgraded power supply, with a supply that provides regulated 280v B+ voltage for the line amp (or TCLA), and an additional 220-280v B+ for the original or Zmod phono amp. This option also includes two new power transformers with higher current to replace the original underpowered PA211 transformer. This will require drilling two small additional mounting holes	$119 KIT	$149 assembled PCB
	3	VOLUME and BALANCE controls these replace the old worn carbon pots with new high quality ALPS RK27 "blue velvet" controls or for the budget minded we also offer the original style low cost ALPHA pots	$50 hi quality pair	$10 low cost pair
	4	SELECTOR SWITCH this replaces the huge old fashioned "rats nest" selector switch which has fragile contacts and is usually noisy and worn out with a much smaller new modern style input selector switch	$8	.
	5	TONE CONTROLS we recommending disconnecting the old tone controls for better fidelity but for those that want upgraded replacements we offer them here as a set of 2 bass and 2 treble controls this kit also INCLUDES 6 new replacement capacitors that are directly wired to the tone controls for much higher quality tone circuits see also our modern replacement TCLA (tone control line amp) listed below	$24 4 tone controls with 6 capacitors	.
	6	new style RCA jack I-O PCB this replaces the 4 old terminal strips with SEVEN wider spaced RCA pairs one PCB with 7 pairs of wider spaced and higher quality gold plated RCA pairs	$59 PCB kit	$79 assembled PCB
as above but with NINE pair	7	new style RCA jack I-O PCB NINE ( 9 ) pair of tightly spaced nickel-plated RCA jacks	$65 PCB kit	$85 assembled PCB

PHOTO	ITEM #	ITEM DESCRIPTION	KIT	ASSEMBLED
	11	new ORIGINAL STYLE replacement circuit boards after replacing the power supply and some other parts above, now you can finish upgrading with these original design PCBs that are made with mil-spec FR4 material, huge improvement over the old phenolic PCBs, and these come with modern higher quality parts such as low-noise metal film resistors and polyproplyene capacitors the PCBs are exact drop-in replacements with the same hookup markings as the originals this set includes the PC6 phono amp and the PC5 line amp PCBs and parts, tubes not included		$120 assembled PCBs
	14	new design "Z-mod" upgraded circuit replacements if you are going to spend a couple hundred $$ upgrading your PAS3, why not make a HUGE IMPROVEMENT in the sound quality by replacing those 50 year old mid-fi circuit designs with modern Hi-Fi plug in replacements? Our VTA "Z-mod" circuits are identical to those used in our highly reviewed and respected SP8 premium preamp design and are exact "drop-in" replacements for an easy upgrade. This item includes the "Z-mod" PC6 phono amp (uses 2 12AX7 tubes) and the "Z-mod" PC5 line amp without tone controls (uses 2 12AU7 tubes) and we definitely recommend that you combine this with item #1 above, the upgraded power supply NOTE - the Z-mod PC5 line amp does NOT have tone controls, so if you want a high quality, modern tone control line amp see the next circuit design below - our "TCLA" upgrade	$110 KIT	$160 assembled PCBs
	15	upgraded Zmod PC6 phono amp only as described above	$60 KIT	$88 assembled phono PCB
	16	upgraded Zmod PC5 line amp only as described above	$60 KIT	$88 assembled line amp
	17	new "TCLA" modern hi-quality tone control line amp This option is for the customer who wants tone controls AND a totally modern Hi-Fi design for very MUCH improved sound fidelity. This is a 4 tube (all 12AX7) line amp only, it includes new linear tone controls, and can be used with either the upgraded Z-mod phono PCB or with the original phono board, or alone by itself without phono. Our #1 item upgraded power supply is recommended but not required.	$119 KIT	$179 assembled PCB
	18	brand new "PAS3-Aikido" (SP12 circuit) This is our highest quality circuit and has been specially designed to fit into the PAS3. Identical circuit to our hi-end SP12 on a smaller PCB, and using PAS power supply. Our #1 item upgraded power supply is recommended but not required. This is a super bargain at only $79 !!	$79 KIT	$129 assembled PCB
	19	brand new PH10 phono circuit This is our highest quality circuit specially designed to fit into the PAS3. Identical circuit to our hi-end PH10 phono circuit and using PAS power supply. Our #1 item upgraded power supply is recommended but not required. This is a super bargain at only $99 !!	$99 KIT	$149 assembled PCB
	21	set of new tubes for original design PCBs this includes 4 JJ 12AX7 tubes and 1 NOS 12X4 tube	$60 set	.
	22	set of new tubes for Zmod upgrade PCBs this includes 2 low-noise EH 12AX7 tubes, 2 JJ 12AU7 tubes, and 1 NOS 12X4 tube	$65 set	.
	23	set of new tubes for TCLA tone control line amp this includes 4 JJ 12AX7 tubes	$50 set	.
	24	set of new tubes for AIKIDO line amp this includes 4 JJ 12AU7 tubes	$50 set	.
	25	set of new tubes for PH10 phono amp this includes 2 EH 12AY7 low-noise tested tubes	$40 set	.
	27	original type DPDT slide switches set of 4	$10 4 slide switches	.
	28	new LED replaces old style pilot light saves 140ma of filament current!	$8 LED pilot light	.
shipping & handling	0	DON'T FORGET - shipping & handling for ALL items please ADD shipping by clicking here only one shipping fee per order! (not for each item)	add $5 for shipping	add $5 for shipping

return to PAS3 page