This was a top quality copy of the original design, allowing the radios to be taken in the field where valuable kit was lying idle.
This was one of a set of five boards copied from original old non-working samples. Along with supplying the new set of boards, they got a full package of drawings, artworks, BOMs etc.
(These always work first time - even those where we were not allowed the boards other than to view them as they were essential to be working).
This PSU drives two models of Radio and every part including heatsink, floating connectors, earth spring, casing and electronics had to be re-engineered to an ever evolving specification.
The filter assembly was sent to us for re-engineering, believing the customer could buy the connector end. However they couldn't so InvisiTech made that and wired it into the filter assembly.
This assembly was basically straight forward but for the complexity of the inner workings which included a specific magnet for collecting gear swarf, but once deciphered was an easy fix to the issue.
This 1cm cube transformer has very tight tolerances on its functions and no longer was being supported by the original manufacturer. it was impossible for them to make consistently due to an error on the drawings that our team found and corrected.
Socket for PCB mounting at 90 degrees - had to be plug compatible with existing sets in the field.
Keyed connector (sockets) with guide holes for location pins. The connector has to float to allow for irregularities in the fixed mating halves.
Small fine pitched PCB mounting connector that had to fit existing PCB design, fit physical space allowed (maintaining the correct distance between boards without risk of disconnection) and fully cleanable after soldering.
10kv Switch Plate which has built in terminations, pivot points and is machined out of one very large plastic block without distortion or risk of arcing or shorting.
Special cable spanner for use in extremely tight space, where even a tommy bar is unable to assist.
This specialist cooling system is made of aluminium and stainless steel and has a very high specification. This is expected to operate for long periods of time without a break.
Original component fitted to customer board was a BGA and the new device was also a BGA but a different size and needed extra parts to fulfill the programming needs.
Original Transistor was a large bolt down can, its replacement part was a TO style device.
Original device was a PGA and the new replacement was SMD and needed voltage changing so voltage regulator circuit was designed underneath.
Box fuse with internal wire replacement that now allows for quick and simple fuse changing if required.
A faster and more reliable module came on the market, with a different footprint and new requirements to operate successfully and this is the converter plus module.
Bus bar with diode current directioning to replace an obsolete part.