1- The OT20SE winding from the Mexico plant is on order. We will laminate, varnish and test here and offer it from stock shortly.
2- Domestic USPS performance is getting better. We'll probably remove all the dire warnings we have on EBay listings shortly as the FEDEX Smartpost shipping is typically 25 to 30% more
expensive. We've been using USPS Priority again for non-eBay shipments
At some point this year I'll see if I can't work up a spreadsheet of custom designs we've worked out in the past 15 years. It may give some of you ideas for starting points. I don't
always know the applications involved, but where I do I'd drop that in.
Recent custom jobs include:
OT60PP-DYN-USA- Dynaco 60W scaled up to EI 1-1/4 x 1.75IN iron (4K3: 4/8 ohm)
OT43PP-DYN-M: scaled the Dynaco OT up to 85VA using EI 1-1/8 Lams (4K3: 4/8 ohm)
OT22PP-DYN-USA - Dynaco35 OT scaled up a size using EI 1-1/8 Lams (8K: 4/8 ohm)
OT50PP-HF-USA- 50VA EI 1-1/4 x 1.75IN iron (7K6: 4/8 ohm)
OT25SE-Special- EI-112 SE at 2K5/3K5/5K/7K to 8 ohms for tube swap amp
PT350M-TWD-USA- a basic 700Vct 130mA Tweed Deluxe PT in upright FM200 end bells
PT315.2-W145- a replacement PT for a Wurlizter 145 piano
PT260-Special-VJR: created a Valve JR replacement PT (120Vac mains x 260vac no-CT x 6.3A)
PT2R5 & PT7R5- filament PT's 120Vac mains x 2.5Vac(1.75A) & 7.5Vac(1.25A) for radio tubes
PT325P-Special: EI-1-1/4 Power Xfr 120Vac mains x 325-0-325V (180mA) x 6.3v(4A) x 5V(3A)
OT25SE-HiFi Special: A pair at 3K5 ohms (90mADC) x 8 Ohm 18VA- 5X interleaved.
OT10SE-UL-HiFi Special: pair of 4K5 ohm (UL taps) x 4/8 ohm (50mADC, 10VA) oversized core
OT15SE-Special: Guitar OT at 3K: 4/8/16Ohms 75mADC on oversized EI-7/8 stack
PT250P-Special: EI-1-1/4 Power Xfr 120Vac mains x 250-0-250V (120mA) x 6.3v(4.9A) x 5V(1A
PT250.1-USA-Special: a Power Xfmr for Pre-amps and 1 or 2 VA Guitar amps. 120Vac mains x
250-0-250(40mA) x 6.3V(1.5A). Using the EI-7/8 x 1in 2-section bobbin and VC87 bells
L4M35- Small choke for amps 5W or less at 4Henries x 35mADC x 105 ohms in EI-5/8 shielded case
PT030M/PT045M- 30Vct & 45Vct 3A Power transformers for Juke Box motors