Northern Lights
Flashlight Enthusiast
SOLD-PR to BiPin socket with Welch Allyn 01185 Bulbs
Are you looking for the Welch Allyn 01185 Bulbs to build a M85? If you need potted bulb or are considering getting a PR to BiPin socket this set solves your problem.
Available two sets, each a PR to BiPin socket adapter fitted with WA 01185 bulbs.
This set will allow you to drop-in or wire the socket into an existing PR type of bulb socket such as is used in MagLites. The PR2Bipin socket will allow the use of G4 bipin size bulbs; the pin spacing is 4mm. The photo shows the sockets loaded with Phillips 5761 and Welch Allyn 1185. The bulbs are removable. I built the sockets. Sockets are an on going project of research and development for me, these sockets are my first models, informally called MK 1.
A ceramic PR to Bi-pindrop in socket; not machined but fabricated from brass tubing, copper tubing, and Cotronics 940 ceramic potting material. This is a limited production run completed to deplete surplus materials that were obtained to support personal portable lighting design projects.
Shipping and handling
$2.50 USD to North America
$4.50 USD internationally
Buyer pays shipping, USPS and mailing insurance. Shipping on receipt of payment, PayPal or certified check or money order. I will honor the first "I'll take it" without conditions posted in the thread. This is a private sale, consider the parts used, no warranty or guarantee offered or implied. I check CPF in the morning, Mountain Standard Time, UTC/GMT -7 hours. Private Message the specific details please.
Please do not pay until you get a go ahead by PM. Paypal to: northernlightsled (at) yahoos (.) com. (writing it this way in a thread is supposed to beat the spammer's email address suckers!
Disclaimer and Features:
This is a private sale from me and I offer no warranty or guarantee on the items to the buyer and user. The parts are not proven or tested for safety, reliability or compatibility of the parts alone or together. By purchasing these sockets you certify you are at least 18 years of age and understand you purchased these sockets and bulbs as is and use them at your own risk.
There are 42 steps to building one socket, not counting steps preparing jig fixtures and ceramic materials. These sockets accomplish the intended objective. The quality is functional, some tooling marks may be visible, solder joints visible on the bottom and ceramic appearance often vary between pieces but the critical dimensions to provide a proper orientation to the foci of the OEM reflector has been maintained. These are different from the machined PR to bi-pin offered other makers.
The drop in feature allows the use of the original cam action and reflectors of most brands of lights. It also allows the use of modified systems to include pre-focused reflectors.
These sockets work with most G4 style bi-pin bulbs. Not every combination has been tried.
The bi-pin-sockets are COPPER, a better conductor than aluminum, brass, gold, etc., only Silver conducts electricity better.
Reference: (https://www.candlepowerforums.com/threads/151197&highlight) ,
The socket is fabricated from a brass housing, copper pin-tube connectors in the sockets and Cotronics 940 ceramic. All electrical connections, ground pin tube to the case by a short copper jumper, are encased in soldered. The casing and tubes use a proprietary design matrix to lock into the ceramic to reduce chances of slippage that can occur in other systems due to thermal expansion differentials. The socket places most G4 bulbs at a correct focal point for cam equipped OEM reflectors and most reflectors that have duplicated the OEM specification. It could place the bulb at an improper height for some reflectors, not all combinations have been investigated. Pin-tubes are designed to correctly fit typical G4 wire pins. This socket as well as other sockets that are made by milling and machining sometimes fit to the pins loosely, that condition is easily corrected.
Bulb centering can also be affected by the bulb to socket fit and socket to flashlight bulb retaining system match up.
INSTRUCTIONS
Most bi-pin bulbs are very hot, some are under pressure, many require cleaning and absolutely will fail if contaminated with contaminates from bare skin, the result of handling. Eye protection is recommended and advised when handling bulbs.
Initial Burn Out and Use:
As in high output potted bulbs, even though the sockets are baked during the ceramic curing process sometimes there seems to be residues that burn out in first use. To keep from fogging the window (lens) and reflector from evaporating substances during first use do a burn out in the open with the head off, do so in a safe manner, some bulbs are under pressure, and most are very hot.
Corrective Actions:
Wear Eye Protection
If the bulb is too loose in the socket it will easily slide out and will have poor electrical contact. To fix that grasp the base of the pin at the bulb with one pair of needle nose pliers and with another pair of needle nose pliers grasp the end of the pin and bend it slightly out ward to the lateral long side of the bulb. Bending the pin without support, bending against the connection to the bulb may break the bulb or pin. To the other pin do the same in the opposite direction. Make the bends very slight. This bend will tighten up the contact of the pin wire within the tubes. An alternate method is to bend the pins closer together or farther apart.
If the bulb does not center, look down on it in the reflector and gently align the bulb applying very mild pressure and bend to the pins. You can easily damage or break bulbs by bending the pins.
If the bulb sets too high in the socket because the bulb contacts the ceramic material then the ceramic be ground down to lower the focal point.
If the bulb is too low PR spacing washers can be used to bring it up to the focal point, foci. It can also be not seated as deeply in the connectors.
If the bulb is too tight, sometimes clipping a portion off the end of the pins reduces the friction and leverage of any kinks in the bulb pin wires and the bulb will go in.
I learned a lot from fellow CPF members, sometimes just reading from their posts, for them:
Thanks for the posts, discussions, inspiration, testing, and all the generosity and encouragement on this project which I started about a year ago :
JS
JimmyM
DonShock
MissionaryMan
JimJones
AWR
FIVEMEGA
LuxLuthor
Plasmaman
Reference:
MY WORK, MY MODS:
https://www.candlepowerforums.com/threads/172284 My last 2c-Cell, great review
https://www.candlepowerforums.com/threads/170280 stuff I made
http://www.cpfmarketplace.com/mp/showthread.php?t=158647 attaboy in post #13, great review
https://www.candlepowerforums.com/threads/162767 Tail cap modifications
https://www.candlepowerforums.com/threads/177808 Lithium M85, charging Jack, drivers
http://www.cpfmarketplace.com/mp/showthread.php?t=170347 Lithiuim 5761 2C-size, Jack and drivier
SOURCES OF PARTS:
http://www.cpfmarketplace.com/mp/showthread.php?t=168089 Litho Reflectors
http://www.cpfmarketplace.com/mp/showthread.php?t=168089 bulbs
Are you looking for the Welch Allyn 01185 Bulbs to build a M85? If you need potted bulb or are considering getting a PR to BiPin socket this set solves your problem.
Available two sets, each a PR to BiPin socket adapter fitted with WA 01185 bulbs.
This set will allow you to drop-in or wire the socket into an existing PR type of bulb socket such as is used in MagLites. The PR2Bipin socket will allow the use of G4 bipin size bulbs; the pin spacing is 4mm. The photo shows the sockets loaded with Phillips 5761 and Welch Allyn 1185. The bulbs are removable. I built the sockets. Sockets are an on going project of research and development for me, these sockets are my first models, informally called MK 1.
A ceramic PR to Bi-pindrop in socket; not machined but fabricated from brass tubing, copper tubing, and Cotronics 940 ceramic potting material. This is a limited production run completed to deplete surplus materials that were obtained to support personal portable lighting design projects.
I have a limited number, only 0 left, of these tubular fabricated
DROP IN CERAMIC PR TO BI-PIN SOCKETS
was : $35.00 USD
now
$23.00 USD
for each socket and a Welch Allyn 01185 bulb together
now
$23.00 USD
for each socket and a Welch Allyn 01185 bulb together
Shipping and handling
$2.50 USD to North America
$4.50 USD internationally
Buyer pays shipping, USPS and mailing insurance. Shipping on receipt of payment, PayPal or certified check or money order. I will honor the first "I'll take it" without conditions posted in the thread. This is a private sale, consider the parts used, no warranty or guarantee offered or implied. I check CPF in the morning, Mountain Standard Time, UTC/GMT -7 hours. Private Message the specific details please.
Please do not pay until you get a go ahead by PM. Paypal to: northernlightsled (at) yahoos (.) com. (writing it this way in a thread is supposed to beat the spammer's email address suckers!
Disclaimer and Features:
This is a private sale from me and I offer no warranty or guarantee on the items to the buyer and user. The parts are not proven or tested for safety, reliability or compatibility of the parts alone or together. By purchasing these sockets you certify you are at least 18 years of age and understand you purchased these sockets and bulbs as is and use them at your own risk.
There are 42 steps to building one socket, not counting steps preparing jig fixtures and ceramic materials. These sockets accomplish the intended objective. The quality is functional, some tooling marks may be visible, solder joints visible on the bottom and ceramic appearance often vary between pieces but the critical dimensions to provide a proper orientation to the foci of the OEM reflector has been maintained. These are different from the machined PR to bi-pin offered other makers.
The drop in feature allows the use of the original cam action and reflectors of most brands of lights. It also allows the use of modified systems to include pre-focused reflectors.
These sockets work with most G4 style bi-pin bulbs. Not every combination has been tried.
The bi-pin-sockets are COPPER, a better conductor than aluminum, brass, gold, etc., only Silver conducts electricity better.
Reference: (https://www.candlepowerforums.com/threads/151197&highlight) ,
The socket is fabricated from a brass housing, copper pin-tube connectors in the sockets and Cotronics 940 ceramic. All electrical connections, ground pin tube to the case by a short copper jumper, are encased in soldered. The casing and tubes use a proprietary design matrix to lock into the ceramic to reduce chances of slippage that can occur in other systems due to thermal expansion differentials. The socket places most G4 bulbs at a correct focal point for cam equipped OEM reflectors and most reflectors that have duplicated the OEM specification. It could place the bulb at an improper height for some reflectors, not all combinations have been investigated. Pin-tubes are designed to correctly fit typical G4 wire pins. This socket as well as other sockets that are made by milling and machining sometimes fit to the pins loosely, that condition is easily corrected.
Bulb centering can also be affected by the bulb to socket fit and socket to flashlight bulb retaining system match up.
INSTRUCTIONS
Most bi-pin bulbs are very hot, some are under pressure, many require cleaning and absolutely will fail if contaminated with contaminates from bare skin, the result of handling. Eye protection is recommended and advised when handling bulbs.
Initial Burn Out and Use:
As in high output potted bulbs, even though the sockets are baked during the ceramic curing process sometimes there seems to be residues that burn out in first use. To keep from fogging the window (lens) and reflector from evaporating substances during first use do a burn out in the open with the head off, do so in a safe manner, some bulbs are under pressure, and most are very hot.
Corrective Actions:
Wear Eye Protection
If the bulb is too loose in the socket it will easily slide out and will have poor electrical contact. To fix that grasp the base of the pin at the bulb with one pair of needle nose pliers and with another pair of needle nose pliers grasp the end of the pin and bend it slightly out ward to the lateral long side of the bulb. Bending the pin without support, bending against the connection to the bulb may break the bulb or pin. To the other pin do the same in the opposite direction. Make the bends very slight. This bend will tighten up the contact of the pin wire within the tubes. An alternate method is to bend the pins closer together or farther apart.
If the bulb does not center, look down on it in the reflector and gently align the bulb applying very mild pressure and bend to the pins. You can easily damage or break bulbs by bending the pins.
If the bulb sets too high in the socket because the bulb contacts the ceramic material then the ceramic be ground down to lower the focal point.
If the bulb is too low PR spacing washers can be used to bring it up to the focal point, foci. It can also be not seated as deeply in the connectors.
If the bulb is too tight, sometimes clipping a portion off the end of the pins reduces the friction and leverage of any kinks in the bulb pin wires and the bulb will go in.
I learned a lot from fellow CPF members, sometimes just reading from their posts, for them:
Thanks for the posts, discussions, inspiration, testing, and all the generosity and encouragement on this project which I started about a year ago :
JS
JimmyM
DonShock
MissionaryMan
JimJones
AWR
FIVEMEGA
LuxLuthor
Plasmaman
Reference:
MY WORK, MY MODS:
https://www.candlepowerforums.com/threads/172284 My last 2c-Cell, great review
https://www.candlepowerforums.com/threads/170280 stuff I made
http://www.cpfmarketplace.com/mp/showthread.php?t=158647 attaboy in post #13, great review
https://www.candlepowerforums.com/threads/162767 Tail cap modifications
https://www.candlepowerforums.com/threads/177808 Lithium M85, charging Jack, drivers
http://www.cpfmarketplace.com/mp/showthread.php?t=170347 Lithiuim 5761 2C-size, Jack and drivier
SOURCES OF PARTS:
http://www.cpfmarketplace.com/mp/showthread.php?t=168089 Litho Reflectors
http://www.cpfmarketplace.com/mp/showthread.php?t=168089 bulbs
Last edited:
as per our PM discussions
